Python file for turning a raspberry pi into a barcode logging device. Requires a barcode scanner. For SSCC support, requires that the <GS> symbol be replace in-device to <TAB>.

barcodeReader.py

#!/usr/bin/python3
import sys, re, requests, json, datetime
from evdev import InputDevice, categorize, ecodes
import evdev

SSCC = {
    "^00(\d{18})" : "Serial Shipping Container Code (SSCC) " ,
    "^01(\d{14})" : "Global Trade Item Number (GTIN)" ,
    "^02(\d{14})" : "GTIN of contained trade items" ,
    "^10([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,20})" : "Batch or lot number" ,
    "^11(\d{6})" : "Production date (YYMMDD)" ,
    "^12(\d{6})" : "Due date (YYMMDD)" ,
    "^13(\d{6})" : "Packaging date (YYMMDD)" ,
    "^15(\d{6})" : "Best before date (YYMMDD)" ,
    "^16(\d{6})" : "Sell by date (YYMMDD)" ,
    "^17(\d{6})" : "Expiration date (YYMMDD)" ,
    "^20(\d{2})" : "Internal product variant" ,
    "^21([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,20})" : "Serial number" ,
    "^22([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,20})" : "Consumer product variant" ,
    "^243([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,28})" : "Third Party Controlled, Serialised Extension of GTIN (TPX)" ,
    "^240([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,30})" : "Additional product identification assigned by the manufacturer" ,
    "^241([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,30})" : "Customer part number" ,
    "^242(\d{0,6})" : "Made-to-Order variation number" ,
    "^243([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,20})" : "Packaging component number" ,
    "^250([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,30})" : "Secondary serial number" ,
    "^251([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,30})" : "Reference to source entity" ,
    "^253(\d{13})([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,17})" : "Global Document Type Identifier (GDTI)" ,
    "^254([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,20})" : "GLN extension component" ,
    "^255(\d{13})(\d{0,12})" : "Global Coupon Number (GCN)" ,
    "^30(\d{0,8})" : "Variable count of items (variable measure trade item)" ,
    "^3100(\d{6})" : "Net weight, kilograms (variable measure trade item)" ,
    "^3101(\d{6})" : "Net weight, kilograms (variable measure trade item)" ,
    "^3102(\d{6})" : "Net weight, kilograms (variable measure trade item)" ,
    "^3103(\d{6})" : "Net weight, kilograms (variable measure trade item)" ,
    "^3104(\d{6})" : "Net weight, kilograms (variable measure trade item)" ,
    "^3105(\d{6})" : "Net weight, kilograms (variable measure trade item)" ,
    "^3110(\d{6})" : "Length or first dimension, metres (variable measure trade item)" ,
    "^3111(\d{6})" : "Length or first dimension, metres (variable measure trade item)" ,
    "^3112(\d{6})" : "Length or first dimension, metres (variable measure trade item)" ,
    "^3113(\d{6})" : "Length or first dimension, metres (variable measure trade item)" ,
    "^3114(\d{6})" : "Length or first dimension, metres (variable measure trade item)" ,
    "^3115(\d{6})" : "Length or first dimension, metres (variable measure trade item)" ,
    "^3120(\d{6})" : "Width, diameter, or second dimension, metres (variable measure trade item)" ,
    "^3121(\d{6})" : "Width, diameter, or second dimension, metres (variable measure trade item)" ,
    "^3122(\d{6})" : "Width, diameter, or second dimension, metres (variable measure trade item)" ,
    "^3123(\d{6})" : "Width, diameter, or second dimension, metres (variable measure trade item)" ,
    "^3124(\d{6})" : "Width, diameter, or second dimension, metres (variable measure trade item)" ,
    "^3125(\d{6})" : "Width, diameter, or second dimension, metres (variable measure trade item)" ,
    "^3130(\d{6})" : "Depth, thickness, height, or third dimension, metres (variable measure trade item)" ,
    "^3131(\d{6})" : "Depth, thickness, height, or third dimension, metres (variable measure trade item)" ,
    "^3132(\d{6})" : "Depth, thickness, height, or third dimension, metres (variable measure trade item)" ,
    "^3133(\d{6})" : "Depth, thickness, height, or third dimension, metres (variable measure trade item)" ,
    "^3134(\d{6})" : "Depth, thickness, height, or third dimension, metres (variable measure trade item)" ,
    "^3135(\d{6})" : "Depth, thickness, height, or third dimension, metres (variable measure trade item)" ,
    "^3140(\d{6})" : "Area, square metres (variable measure trade item)" ,
    "^3141(\d{6})" : "Area, square metres (variable measure trade item)" ,
    "^3142(\d{6})" : "Area, square metres (variable measure trade item)" ,
    "^3143(\d{6})" : "Area, square metres (variable measure trade item)" ,
    "^3144(\d{6})" : "Area, square metres (variable measure trade item)" ,
    "^3145(\d{6})" : "Area, square metres (variable measure trade item)" ,
    "^3150(\d{6})" : "Net volume, litres (variable measure trade item)" ,
    "^3151(\d{6})" : "Net volume, litres (variable measure trade item)" ,
    "^3152(\d{6})" : "Net volume, litres (variable measure trade item)" ,
    "^3153(\d{6})" : "Net volume, litres (variable measure trade item)" ,
    "^3154(\d{6})" : "Net volume, litres (variable measure trade item)" ,
    "^3155(\d{6})" : "Net volume, litres (variable measure trade item)" ,
    "^3160(\d{6})" : "Net volume, cubic metres (variable measure trade item)" ,
    "^3161(\d{6})" : "Net volume, cubic metres (variable measure trade item)" ,
    "^3162(\d{6})" : "Net volume, cubic metres (variable measure trade item)" ,
    "^3163(\d{6})" : "Net volume, cubic metres (variable measure trade item)" ,
    "^3164(\d{6})" : "Net volume, cubic metres (variable measure trade item)" ,
    "^3165(\d{6})" : "Net volume, cubic metres (variable measure trade item)" ,
    "^3200(\d{6})" : "Net weight, pounds (variable measure trade item)" ,
    "^3201(\d{6})" : "Net weight, pounds (variable measure trade item)" ,
    "^3202(\d{6})" : "Net weight, pounds (variable measure trade item)" ,
    "^3203(\d{6})" : "Net weight, pounds (variable measure trade item)" ,
    "^3204(\d{6})" : "Net weight, pounds (variable measure trade item)" ,
    "^3205(\d{6})" : "Net weight, pounds (variable measure trade item)" ,
    "^3210(\d{6})" : "Length or first dimension, inches (variable measure trade item)" ,
    "^3211(\d{6})" : "Length or first dimension, inches (variable measure trade item)" ,
    "^3212(\d{6})" : "Length or first dimension, inches (variable measure trade item)" ,
    "^3213(\d{6})" : "Length or first dimension, inches (variable measure trade item)" ,
    "^3214(\d{6})" : "Length or first dimension, inches (variable measure trade item)" ,
    "^3215(\d{6})" : "Length or first dimension, inches (variable measure trade item)" ,
    "^3220(\d{6})" : "Length or first dimension, feet (variable measure trade item)" ,
    "^3221(\d{6})" : "Length or first dimension, feet (variable measure trade item)" ,
    "^3222(\d{6})" : "Length or first dimension, feet (variable measure trade item)" ,
    "^3223(\d{6})" : "Length or first dimension, feet (variable measure trade item)" ,
    "^3224(\d{6})" : "Length or first dimension, feet (variable measure trade item)" ,
    "^3225(\d{6})" : "Length or first dimension, feet (variable measure trade item)" ,
    "^3230(\d{6})" : "Length or first dimension, yards (variable measure trade item)" ,
    "^3231(\d{6})" : "Length or first dimension, yards (variable measure trade item)" ,
    "^3232(\d{6})" : "Length or first dimension, yards (variable measure trade item)" ,
    "^3233(\d{6})" : "Length or first dimension, yards (variable measure trade item)" ,
    "^3234(\d{6})" : "Length or first dimension, yards (variable measure trade item)" ,
    "^3235(\d{6})" : "Length or first dimension, yards (variable measure trade item)" ,
    "^3240(\d{6})" : "Width, diameter, or second dimension, inches (variable measure trade item)" ,
    "^3241(\d{6})" : "Width, diameter, or second dimension, inches (variable measure trade item)" ,
    "^3242(\d{6})" : "Width, diameter, or second dimension, inches (variable measure trade item)" ,
    "^3243(\d{6})" : "Width, diameter, or second dimension, inches (variable measure trade item)" ,
    "^3244(\d{6})" : "Width, diameter, or second dimension, inches (variable measure trade item)" ,
    "^3245(\d{6})" : "Width, diameter, or second dimension, inches (variable measure trade item)" ,
    "^3250(\d{6})" : "Width, diameter, or second dimension, feet (variable measure trade item)" ,
    "^3251(\d{6})" : "Width, diameter, or second dimension, feet (variable measure trade item)" ,
    "^3252(\d{6})" : "Width, diameter, or second dimension, feet (variable measure trade item)" ,
    "^3253(\d{6})" : "Width, diameter, or second dimension, feet (variable measure trade item)" ,
    "^3254(\d{6})" : "Width, diameter, or second dimension, feet (variable measure trade item)" ,
    "^3255(\d{6})" : "Width, diameter, or second dimension, feet (variable measure trade item)" ,
    "^3260(\d{6})" : "Width, diameter, or second dimension, yards (variable measure trade item)" ,
    "^3261(\d{6})" : "Width, diameter, or second dimension, yards (variable measure trade item)" ,
    "^3262(\d{6})" : "Width, diameter, or second dimension, yards (variable measure trade item)" ,
    "^3263(\d{6})" : "Width, diameter, or second dimension, yards (variable measure trade item)" ,
    "^3264(\d{6})" : "Width, diameter, or second dimension, yards (variable measure trade item)" ,
    "^3265(\d{6})" : "Width, diameter, or second dimension, yards (variable measure trade item)" ,
    "^3270(\d{6})" : "Depth, thickness, height, or third dimension, inches (variable measure trade item)" ,
    "^3271(\d{6})" : "Depth, thickness, height, or third dimension, inches (variable measure trade item)" ,
    "^3272(\d{6})" : "Depth, thickness, height, or third dimension, inches (variable measure trade item)" ,
    "^3273(\d{6})" : "Depth, thickness, height, or third dimension, inches (variable measure trade item)" ,
    "^3274(\d{6})" : "Depth, thickness, height, or third dimension, inches (variable measure trade item)" ,
    "^3275(\d{6})" : "Depth, thickness, height, or third dimension, inches (variable measure trade item)" ,
    "^3280(\d{6})" : "Depth, thickness, height, or third dimension, feet (variable measure trade item)" ,
    "^3281(\d{6})" : "Depth, thickness, height, or third dimension, feet (variable measure trade item)" ,
    "^3282(\d{6})" : "Depth, thickness, height, or third dimension, feet (variable measure trade item)" ,
    "^3283(\d{6})" : "Depth, thickness, height, or third dimension, feet (variable measure trade item)" ,
    "^3284(\d{6})" : "Depth, thickness, height, or third dimension, feet (variable measure trade item)" ,
    "^3285(\d{6})" : "Depth, thickness, height, or third dimension, feet (variable measure trade item)" ,
    "^3290(\d{6})" : "Depth, thickness, height, or third dimension, yards (variable measure trade item)" ,
    "^3291(\d{6})" : "Depth, thickness, height, or third dimension, yards (variable measure trade item)" ,
    "^3292(\d{6})" : "Depth, thickness, height, or third dimension, yards (variable measure trade item)" ,
    "^3293(\d{6})" : "Depth, thickness, height, or third dimension, yards (variable measure trade item)" ,
    "^3294(\d{6})" : "Depth, thickness, height, or third dimension, yards (variable measure trade item)" ,
    "^3295(\d{6})" : "Depth, thickness, height, or third dimension, yards (variable measure trade item)" ,
    "^3300(\d{6})" : "Logistic weight, kilograms" ,
    "^3301(\d{6})" : "Logistic weight, kilograms" ,
    "^3302(\d{6})" : "Logistic weight, kilograms" ,
    "^3303(\d{6})" : "Logistic weight, kilograms" ,
    "^3304(\d{6})" : "Logistic weight, kilograms" ,
    "^3305(\d{6})" : "Logistic weight, kilograms" ,
    "^3310(\d{6})" : "Length or first dimension, metres" ,
    "^3311(\d{6})" : "Length or first dimension, metres" ,
    "^3312(\d{6})" : "Length or first dimension, metres" ,
    "^3313(\d{6})" : "Length or first dimension, metres" ,
    "^3314(\d{6})" : "Length or first dimension, metres" ,
    "^3315(\d{6})" : "Length or first dimension, metres" ,
    "^3320(\d{6})" : "Width, diameter, or second dimension, metres" ,
    "^3321(\d{6})" : "Width, diameter, or second dimension, metres" ,
    "^3322(\d{6})" : "Width, diameter, or second dimension, metres" ,
    "^3323(\d{6})" : "Width, diameter, or second dimension, metres" ,
    "^3324(\d{6})" : "Width, diameter, or second dimension, metres" ,
    "^3325(\d{6})" : "Width, diameter, or second dimension, metres" ,
    "^3330(\d{6})" : "Depth, thickness, height, or third dimension, metres" ,
    "^3331(\d{6})" : "Depth, thickness, height, or third dimension, metres" ,
    "^3332(\d{6})" : "Depth, thickness, height, or third dimension, metres" ,
    "^3333(\d{6})" : "Depth, thickness, height, or third dimension, metres" ,
    "^3334(\d{6})" : "Depth, thickness, height, or third dimension, metres" ,
    "^3335(\d{6})" : "Depth, thickness, height, or third dimension, metres" ,
    "^3340(\d{6})" : "Area, square metres" ,
    "^3341(\d{6})" : "Area, square metres" ,
    "^3342(\d{6})" : "Area, square metres" ,
    "^3343(\d{6})" : "Area, square metres" ,
    "^3344(\d{6})" : "Area, square metres" ,
    "^3345(\d{6})" : "Area, square metres" ,
    "^3350(\d{6})" : "Logistic volume, litres" ,
    "^3351(\d{6})" : "Logistic volume, litres" ,
    "^3352(\d{6})" : "Logistic volume, litres" ,
    "^3353(\d{6})" : "Logistic volume, litres" ,
    "^3354(\d{6})" : "Logistic volume, litres" ,
    "^3355(\d{6})" : "Logistic volume, litres" ,
    "^3360(\d{6})" : "Logistic volume, cubic metres" ,
    "^3361(\d{6})" : "Logistic volume, cubic metres" ,
    "^3362(\d{6})" : "Logistic volume, cubic metres" ,
    "^3363(\d{6})" : "Logistic volume, cubic metres" ,
    "^3364(\d{6})" : "Logistic volume, cubic metres" ,
    "^3365(\d{6})" : "Logistic volume, cubic metres" ,
    "^3370(\d{6})" : "Kilograms per square metre" ,
    "^3371(\d{6})" : "Kilograms per square metre" ,
    "^3372(\d{6})" : "Kilograms per square metre" ,
    "^3373(\d{6})" : "Kilograms per square metre" ,
    "^3374(\d{6})" : "Kilograms per square metre" ,
    "^3375(\d{6})" : "Kilograms per square metre" ,
    "^3400(\d{6})" : "Logistic weight, pounds" ,
    "^3401(\d{6})" : "Logistic weight, pounds" ,
    "^3402(\d{6})" : "Logistic weight, pounds" ,
    "^3403(\d{6})" : "Logistic weight, pounds" ,
    "^3404(\d{6})" : "Logistic weight, pounds" ,
    "^3405(\d{6})" : "Logistic weight, pounds" ,
    "^3410(\d{6})" : "Length or first dimension, inches" ,
    "^3411(\d{6})" : "Length or first dimension, inches" ,
    "^3412(\d{6})" : "Length or first dimension, inches" ,
    "^3413(\d{6})" : "Length or first dimension, inches" ,
    "^3414(\d{6})" : "Length or first dimension, inches" ,
    "^3415(\d{6})" : "Length or first dimension, inches" ,
    "^3420(\d{6})" : "Length or first dimension, feet" ,
    "^3421(\d{6})" : "Length or first dimension, feet" ,
    "^3422(\d{6})" : "Length or first dimension, feet" ,
    "^3423(\d{6})" : "Length or first dimension, feet" ,
    "^3424(\d{6})" : "Length or first dimension, feet" ,
    "^3425(\d{6})" : "Length or first dimension, feet" ,
    "^3430(\d{6})" : "Length or first dimension, yards" ,
    "^3431(\d{6})" : "Length or first dimension, yards" ,
    "^3432(\d{6})" : "Length or first dimension, yards" ,
    "^3433(\d{6})" : "Length or first dimension, yards" ,
    "^3434(\d{6})" : "Length or first dimension, yards" ,
    "^3435(\d{6})" : "Length or first dimension, yards" ,
    "^3440(\d{6})" : "Width, diameter, or second dimension, inches" ,
    "^3441(\d{6})" : "Width, diameter, or second dimension, inches" ,
    "^3442(\d{6})" : "Width, diameter, or second dimension, inches" ,
    "^3443(\d{6})" : "Width, diameter, or second dimension, inches" ,
    "^3444(\d{6})" : "Width, diameter, or second dimension, inches" ,
    "^3445(\d{6})" : "Width, diameter, or second dimension, inches" ,
    "^3450(\d{6})" : "Width, diameter, or second dimension, feet" ,
    "^3451(\d{6})" : "Width, diameter, or second dimension, feet" ,
    "^3452(\d{6})" : "Width, diameter, or second dimension, feet" ,
    "^3453(\d{6})" : "Width, diameter, or second dimension, feet" ,
    "^3454(\d{6})" : "Width, diameter, or second dimension, feet" ,
    "^3455(\d{6})" : "Width, diameter, or second dimension, feet" ,
    "^3460(\d{6})" : "Width, diameter, or second dimension, yard" ,
    "^3461(\d{6})" : "Width, diameter, or second dimension, yard" ,
    "^3462(\d{6})" : "Width, diameter, or second dimension, yard" ,
    "^3463(\d{6})" : "Width, diameter, or second dimension, yard" ,
    "^3464(\d{6})" : "Width, diameter, or second dimension, yard" ,
    "^3465(\d{6})" : "Width, diameter, or second dimension, yard" ,
    "^3470(\d{6})" : "Depth, thickness, height, or third dimension, inches" ,
    "^3471(\d{6})" : "Depth, thickness, height, or third dimension, inches" ,
    "^3472(\d{6})" : "Depth, thickness, height, or third dimension, inches" ,
    "^3473(\d{6})" : "Depth, thickness, height, or third dimension, inches" ,
    "^3474(\d{6})" : "Depth, thickness, height, or third dimension, inches" ,
    "^3475(\d{6})" : "Depth, thickness, height, or third dimension, inches" ,
    "^3480(\d{6})" : "Depth, thickness, height, or third dimension, feet" ,
    "^3481(\d{6})" : "Depth, thickness, height, or third dimension, feet" ,
    "^3482(\d{6})" : "Depth, thickness, height, or third dimension, feet" ,
    "^3483(\d{6})" : "Depth, thickness, height, or third dimension, feet" ,
    "^3484(\d{6})" : "Depth, thickness, height, or third dimension, feet" ,
    "^3485(\d{6})" : "Depth, thickness, height, or third dimension, feet" ,
    "^3490(\d{6})" : "Depth, thickness, height, or third dimension, yards" ,
    "^3491(\d{6})" : "Depth, thickness, height, or third dimension, yards" ,
    "^3492(\d{6})" : "Depth, thickness, height, or third dimension, yards" ,
    "^3493(\d{6})" : "Depth, thickness, height, or third dimension, yards" ,
    "^3494(\d{6})" : "Depth, thickness, height, or third dimension, yards" ,
    "^3495(\d{6})" : "Depth, thickness, height, or third dimension, yards" ,
    "^3500(\d{6})" : "Area, square inches (variable measure trade item)" ,
    "^3501(\d{6})" : "Area, square inches (variable measure trade item)" ,
    "^3502(\d{6})" : "Area, square inches (variable measure trade item)" ,
    "^3503(\d{6})" : "Area, square inches (variable measure trade item)" ,
    "^3504(\d{6})" : "Area, square inches (variable measure trade item)" ,
    "^3505(\d{6})" : "Area, square inches (variable measure trade item)" ,
    "^3510(\d{6})" : "Area, square feet (variable measure trade item)" ,
    "^3511(\d{6})" : "Area, square feet (variable measure trade item)" ,
    "^3512(\d{6})" : "Area, square feet (variable measure trade item)" ,
    "^3513(\d{6})" : "Area, square feet (variable measure trade item)" ,
    "^3514(\d{6})" : "Area, square feet (variable measure trade item)" ,
    "^3515(\d{6})" : "Area, square feet (variable measure trade item)" ,
    "^3520(\d{6})" : "Area, square yards (variable measure trade item)" ,
    "^3521(\d{6})" : "Area, square yards (variable measure trade item)" ,
    "^3522(\d{6})" : "Area, square yards (variable measure trade item)" ,
    "^3523(\d{6})" : "Area, square yards (variable measure trade item)" ,
    "^3524(\d{6})" : "Area, square yards (variable measure trade item)" ,
    "^3525(\d{6})" : "Area, square yards (variable measure trade item)" ,
    "^3530(\d{6})" : "Area, square inches" ,
    "^3531(\d{6})" : "Area, square inches" ,
    "^3532(\d{6})" : "Area, square inches" ,
    "^3533(\d{6})" : "Area, square inches" ,
    "^3534(\d{6})" : "Area, square inches" ,
    "^3535(\d{6})" : "Area, square inches" ,
    "^3540(\d{6})" : "Area, square feet" ,
    "^3541(\d{6})" : "Area, square feet" ,
    "^3542(\d{6})" : "Area, square feet" ,
    "^3543(\d{6})" : "Area, square feet" ,
    "^3544(\d{6})" : "Area, square feet" ,
    "^3545(\d{6})" : "Area, square feet" ,
    "^3550(\d{6})" : "Area, square yards" ,
    "^3551(\d{6})" : "Area, square yards" ,
    "^3552(\d{6})" : "Area, square yards" ,
    "^3553(\d{6})" : "Area, square yards" ,
    "^3554(\d{6})" : "Area, square yards" ,
    "^3555(\d{6})" : "Area, square yards" ,
    "^3560(\d{6})" : "Net weight, troy ounces (variable measure trade item)" ,
    "^3561(\d{6})" : "Net weight, troy ounces (variable measure trade item)" ,
    "^3562(\d{6})" : "Net weight, troy ounces (variable measure trade item)" ,
    "^3563(\d{6})" : "Net weight, troy ounces (variable measure trade item)" ,
    "^3564(\d{6})" : "Net weight, troy ounces (variable measure trade item)" ,
    "^3565(\d{6})" : "Net weight, troy ounces (variable measure trade item)" ,
    "^3570(\d{6})" : "Net weight (or volume), ounces (variable measure trade item)" ,
    "^3571(\d{6})" : "Net weight (or volume), ounces (variable measure trade item)" ,
    "^3572(\d{6})" : "Net weight (or volume), ounces (variable measure trade item)" ,
    "^3573(\d{6})" : "Net weight (or volume), ounces (variable measure trade item)" ,
    "^3574(\d{6})" : "Net weight (or volume), ounces (variable measure trade item)" ,
    "^3575(\d{6})" : "Net weight (or volume), ounces (variable measure trade item)" ,
    "^3600(\d{6})" : "Net volume, quarts (variable measure trade item)" ,
    "^3601(\d{6})" : "Net volume, quarts (variable measure trade item)" ,
    "^3602(\d{6})" : "Net volume, quarts (variable measure trade item)" ,
    "^3603(\d{6})" : "Net volume, quarts (variable measure trade item)" ,
    "^3604(\d{6})" : "Net volume, quarts (variable measure trade item)" ,
    "^3605(\d{6})" : "Net volume, quarts (variable measure trade item)" ,
    "^3610(\d{6})" : "Net volume, gallons U.S. (variable measure trade item)" ,
    "^3611(\d{6})" : "Net volume, gallons U.S. (variable measure trade item)" ,
    "^3612(\d{6})" : "Net volume, gallons U.S. (variable measure trade item)" ,
    "^3613(\d{6})" : "Net volume, gallons U.S. (variable measure trade item)" ,
    "^3614(\d{6})" : "Net volume, gallons U.S. (variable measure trade item)" ,
    "^3615(\d{6})" : "Net volume, gallons U.S. (variable measure trade item)" ,
    "^3620(\d{6})" : "Logistic volume, quarts" ,
    "^3621(\d{6})" : "Logistic volume, quarts" ,
    "^3622(\d{6})" : "Logistic volume, quarts" ,
    "^3623(\d{6})" : "Logistic volume, quarts" ,
    "^3624(\d{6})" : "Logistic volume, quarts" ,
    "^3625(\d{6})" : "Logistic volume, quarts" ,
    "^3630(\d{6})" : "Logistic volume, gallons U.S." ,
    "^3631(\d{6})" : "Logistic volume, gallons U.S." ,
    "^3632(\d{6})" : "Logistic volume, gallons U.S." ,
    "^3633(\d{6})" : "Logistic volume, gallons U.S." ,
    "^3634(\d{6})" : "Logistic volume, gallons U.S." ,
    "^3635(\d{6})" : "Logistic volume, gallons U.S." ,
    "^3640(\d{6})" : "Net volume, cubic inches (variable measure trade item)" ,
    "^3641(\d{6})" : "Net volume, cubic inches (variable measure trade item)" ,
    "^3642(\d{6})" : "Net volume, cubic inches (variable measure trade item)" ,
    "^3643(\d{6})" : "Net volume, cubic inches (variable measure trade item)" ,
    "^3644(\d{6})" : "Net volume, cubic inches (variable measure trade item)" ,
    "^3645(\d{6})" : "Net volume, cubic inches (variable measure trade item)" ,
    "^3650(\d{6})" : "Net volume, cubic feet (variable measure trade item)" ,
    "^3651(\d{6})" : "Net volume, cubic feet (variable measure trade item)" ,
    "^3652(\d{6})" : "Net volume, cubic feet (variable measure trade item)" ,
    "^3653(\d{6})" : "Net volume, cubic feet (variable measure trade item)" ,
    "^3654(\d{6})" : "Net volume, cubic feet (variable measure trade item)" ,
    "^3655(\d{6})" : "Net volume, cubic feet (variable measure trade item)" ,
    "^3660(\d{6})" : "Net volume, cubic yards (variable measure trade item)" ,
    "^3661(\d{6})" : "Net volume, cubic yards (variable measure trade item)" ,
    "^3662(\d{6})" : "Net volume, cubic yards (variable measure trade item)" ,
    "^3663(\d{6})" : "Net volume, cubic yards (variable measure trade item)" ,
    "^3664(\d{6})" : "Net volume, cubic yards (variable measure trade item)" ,
    "^3665(\d{6})" : "Net volume, cubic yards (variable measure trade item)" ,
    "^3670(\d{6})" : "Logistic volume, cubic inches" ,
    "^3671(\d{6})" : "Logistic volume, cubic inches" ,
    "^3672(\d{6})" : "Logistic volume, cubic inches" ,
    "^3673(\d{6})" : "Logistic volume, cubic inches" ,
    "^3674(\d{6})" : "Logistic volume, cubic inches" ,
    "^3675(\d{6})" : "Logistic volume, cubic inches" ,
    "^3680(\d{6})" : "Logistic volume, cubic feet" ,
    "^3681(\d{6})" : "Logistic volume, cubic feet" ,
    "^3682(\d{6})" : "Logistic volume, cubic feet" ,
    "^3683(\d{6})" : "Logistic volume, cubic feet" ,
    "^3684(\d{6})" : "Logistic volume, cubic feet" ,
    "^3685(\d{6})" : "Logistic volume, cubic feet" ,
    "^3690(\d{6})" : "Logistic volume, cubic yards" ,
    "^3691(\d{6})" : "Logistic volume, cubic yards" ,
    "^3692(\d{6})" : "Logistic volume, cubic yards" ,
    "^3693(\d{6})" : "Logistic volume, cubic yards" ,
    "^3694(\d{6})" : "Logistic volume, cubic yards" ,
    "^3695(\d{6})" : "Logistic volume, cubic yards" ,
    "^37(\d{0,8})" : "Count of trade items or trade item pieces contained in a logistic unit" ,
    "^3900(\d{0,15})" : "Applicable amount payable or Coupon value, local currency" ,
    "^3901(\d{0,15})" : "Applicable amount payable or Coupon value, local currency" ,
    "^3902(\d{0,15})" : "Applicable amount payable or Coupon value, local currency" ,
    "^3903(\d{0,15})" : "Applicable amount payable or Coupon value, local currency" ,
    "^3904(\d{0,15})" : "Applicable amount payable or Coupon value, local currency" ,
    "^3905(\d{0,15})" : "Applicable amount payable or Coupon value, local currency" ,
    "^3906(\d{0,15})" : "Applicable amount payable or Coupon value, local currency" ,
    "^3907(\d{0,15})" : "Applicable amount payable or Coupon value, local currency" ,
    "^3908(\d{0,15})" : "Applicable amount payable or Coupon value, local currency" ,
    "^3909(\d{0,15})" : "Applicable amount payable or Coupon value, local currency" ,
    "^3910(\d{3})(\d{0,15})" : "Applicable amount payable with ISO currency code" ,
    "^3911(\d{3})(\d{0,15})" : "Applicable amount payable with ISO currency code" ,
    "^3912(\d{3})(\d{0,15})" : "Applicable amount payable with ISO currency code" ,
    "^3913(\d{3})(\d{0,15})" : "Applicable amount payable with ISO currency code" ,
    "^3914(\d{3})(\d{0,15})" : "Applicable amount payable with ISO currency code" ,
    "^3915(\d{3})(\d{0,15})" : "Applicable amount payable with ISO currency code" ,
    "^3916(\d{3})(\d{0,15})" : "Applicable amount payable with ISO currency code" ,
    "^3917(\d{3})(\d{0,15})" : "Applicable amount payable with ISO currency code" ,
    "^3918(\d{3})(\d{0,15})" : "Applicable amount payable with ISO currency code" ,
    "^3919(\d{3})(\d{0,15})" : "Applicable amount payable with ISO currency code" ,
    "^3920(\d{0,15})" : "Applicable amount payable, single monetary area (variable measure trade item)" ,
    "^3921(\d{0,15})" : "Applicable amount payable, single monetary area (variable measure trade item)" ,
    "^3922(\d{0,15})" : "Applicable amount payable, single monetary area (variable measure trade item)" ,
    "^3923(\d{0,15})" : "Applicable amount payable, single monetary area (variable measure trade item)" ,
    "^3924(\d{0,15})" : "Applicable amount payable, single monetary area (variable measure trade item)" ,
    "^3925(\d{0,15})" : "Applicable amount payable, single monetary area (variable measure trade item)" ,
    "^3926(\d{0,15})" : "Applicable amount payable, single monetary area (variable measure trade item)" ,
    "^3927(\d{0,15})" : "Applicable amount payable, single monetary area (variable measure trade item)" ,
    "^3928(\d{0,15})" : "Applicable amount payable, single monetary area (variable measure trade item)" ,
    "^3929(\d{0,15})" : "Applicable amount payable, single monetary area (variable measure trade item)" ,
    "^3930(\d{3})(\d{0,15})" : "Applicable amount payable with ISO currency code (variable measure trade item)" ,
    "^3931(\d{3})(\d{0,15})" : "Applicable amount payable with ISO currency code (variable measure trade item)" ,
    "^3932(\d{3})(\d{0,15})" : "Applicable amount payable with ISO currency code (variable measure trade item)" ,
    "^3933(\d{3})(\d{0,15})" : "Applicable amount payable with ISO currency code (variable measure trade item)" ,
    "^3934(\d{3})(\d{0,15})" : "Applicable amount payable with ISO currency code (variable measure trade item)" ,
    "^3935(\d{3})(\d{0,15})" : "Applicable amount payable with ISO currency code (variable measure trade item)" ,
    "^3936(\d{3})(\d{0,15})" : "Applicable amount payable with ISO currency code (variable measure trade item)" ,
    "^3937(\d{3})(\d{0,15})" : "Applicable amount payable with ISO currency code (variable measure trade item)" ,
    "^3938(\d{3})(\d{0,15})" : "Applicable amount payable with ISO currency code (variable measure trade item)" ,
    "^3939(\d{3})(\d{0,15})" : "Applicable amount payable with ISO currency code (variable measure trade item)" ,
    "^3940(\d{4})" : "Percentage discount of a coupon" ,
    "^3941(\d{4})" : "Percentage discount of a coupon" ,
    "^3942(\d{4})" : "Percentage discount of a coupon" ,
    "^3943(\d{4})" : "Percentage discount of a coupon" ,
    "^400([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,30})" : "Customers purchase order number" ,
    "^401([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,30})" : "Global Identification Number for Consignment (GINC)" ,
    "^402(\d{17})" : "Global Shipment Identification Number (GSIN)" ,
    "^403([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,30})" : "Routing code" ,
    "^410(\d{13})" : "Ship to - Deliver to Global Location Number" ,
    "^411(\d{13})" : "Bill to - Invoice to Global Location Number" ,
    "^412(\d{13})" : "Purchased from Global Location Number" ,
    "^413(\d{13})" : "Ship for - Deliver for - Forward to Global Location Number" ,
    "^414(\d{13})" : "Identification of a physical location - Global Location Number" ,
    "^415(\d{13})" : "Global Location Number of the invoicing party" ,
    "^416(\d{13})" : "GLN of the production or service location" ,
    "^417(\d{13})" : "Party GLN" ,
    "^420([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,20})" : "Ship to - Deliver to postal code within a single postal authority" ,
    "^421(\d{3})([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,9})" : "Ship to - Deliver to postal code with ISO country code" ,
    "^422(\d{3})" : "Country of origin of a trade item" ,
    "^423(\d{3})(\d{0,12})" : "Country of initial processing" ,
    "^424(\d{3})" : "Country of processing" ,
    "^425(\d{3})(\d{0,12})" : "Country of disassembly" ,
    "^426(\d{3})" : "Country covering full process chain" ,
    "^427([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,3})" : "Country subdivision Of origin" ,
    "^7001(\d{13})" : "NATO Stock Number (NSN)" ,
    "^7002([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,30})" : "UN/ECE meat carcasses and cuts classification" ,
    "^7003(\d{10})" : "Expiration date and time" ,
    "^7004(\d{0,4})" : "Active potency" ,
    "^7005([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,12})" : "Catch area" ,
    "^7006(\d{6})" : "First freeze date " ,
    "^7007(\d{6,12})" : "Harvest date" ,
    "^7008([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,3})" : "Species for fishery purposes" ,
    "^7009([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,10})" : "Fishing gear type" ,
    "^7010([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,2})" : "Production method" ,
    "^7020([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,20})" : "Refurbishment lot ID" ,
    "^7021([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,20})" : "Functional status" ,
    "^7022([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,20})" : "Revision status" ,
    "^7023([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,30})" : "Global Individual Asset Identifier (GIAI) of an assembly" ,
    "^7030(\d{3})([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,27})" : "Number of processor with ISO Country Code" ,
    "^7031(\d{3})([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,27})" : "Number of processor with ISO Country Code" ,
    "^7032(\d{3})([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,27})" : "Number of processor with ISO Country Code" ,
    "^7033(\d{3})([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,27})" : "Number of processor with ISO Country Code" ,
    "^7034(\d{3})([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,27})" : "Number of processor with ISO Country Code" ,
    "^7035(\d{3})([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,27})" : "Number of processor with ISO Country Code" ,
    "^7036(\d{3})([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,27})" : "Number of processor with ISO Country Code" ,
    "^7037(\d{3})([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,27})" : "Number of processor with ISO Country Code" ,
    "^7038(\d{3})([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,27})" : "Number of processor with ISO Country Code" ,
    "^7039(\d{3})([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,27})" : "Number of processor with ISO Country Code" ,
    "^7040(\d[\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{3})" : "GS1 UIC with Extension 1 and Importer index" ,
    "^710([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,20})" : "National Healthcare Reimbursement Number (NHRN) - Germany PZN" ,
    "^711([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,20})" : "National Healthcare Reimbursement Number (NHRN) - France CIP" ,
    "^712([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,20})" : "National Healthcare Reimbursement Number (NHRN) - Spain CN" ,
    "^713([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,20})" : "National Healthcare Reimbursement Number (NHRN) - Brasil DRN" ,
    "^714([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,20})" : "National Healthcare Reimbursement Number (NHRN) - Portugal AIM" ,
    "^7230([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{2,30})" : "Certification reference" ,
    "^7231([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{2,30})" : "Certification reference" ,
    "^7232([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{2,30})" : "Certification reference" ,
    "^7233([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{2,30})" : "Certification reference" ,
    "^7234([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{2,30})" : "Certification reference" ,
    "^7235([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{2,30})" : "Certification reference" ,
    "^7236([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{2,30})" : "Certification reference" ,
    "^7237([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{2,30})" : "Certification reference" ,
    "^7238([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{2,30})" : "Certification reference" ,
    "^7239([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{2,30})" : "Certification reference" ,
    "^7240 ([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,20})" : "Protocol ID" ,
    "^8001(\d{14})" : "Roll products (width, length, core diameter, direction, splices)" ,
    "^8002([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,20})" : "Cellular mobile telephone identifier" ,
    "^8003(\d{14})([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,16})" : "Global Returnable Asset Identifier (GRAI)" ,
    "^8004([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,30})" : "Global Individual Asset Identifier (GIAI)" ,
    "^8005(\d{6})" : "Price per unit of measure" ,
    "^8006(\d{14})(\d{2})(\d{2})" : "Identification of an individual trade item piece" ,
    "^8007([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,34})" : "International Bank Account Number (IBAN) " ,
    "^8008(\d{8})(\d{0,4})" : "Date and time of production" ,
    "^8009([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,50})" : "Optically Readable Sensor Indicator" ,
    "^8010([\x23\x2D\x2F\x30-\x39\x41-\x5A]{0,30})" : "Component/Part Identifier (CPID)" ,
    "^8011(\d{0,12})" : "Component/Part Identifier serial number (CPID SERIAL)" ,
    "^8012([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,20})" : "Software version" ,
    "^8013([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,30})" : "Global Model Number (GMN)" ,
    "^8017(\d{18})" : "Global Service Relation Number to identify the relationship between an organisation offering services and the provider of services" ,
    "^8018(\d{18})" : "Global Service Relation Number to identify the relationship between an organisation offering services and the recipient of services" ,
    "^8019(\d{0,10})" : "Service Relation Instance Number (SRIN)" ,
    "^8020([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,25})" : "Payment slip reference number" ,
    "^8026(\d{14})(\d{2})(\d{2})" : "Identification of pieces of a trade item (ITIP) contained in a logistic unit" ,
    "^8110([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,70})" : "Coupon code identification for use in North America" ,
    "^8111(\d{4})" : "Loyalty points of a coupon" ,
    "^8112([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,70})" : "Paperless coupon code identification for use in North America" ,
    "^8200([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,70})" : "Extended Packaging URL " ,
    "^90([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,30})" : "Information mutually agreed between trading partners" ,
    "^91([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,90})" : "Company internal information" ,
    "^92([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,90})" : "Company internal information" ,
    "^93([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,90})" : "Company internal information" ,
    "^94([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,90})" : "Company internal information" ,
    "^95([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,90})" : "Company internal information" ,
    "^96([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,90})" : "Company internal information" ,
    "^97([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,90})" : "Company internal information" ,
    "^98([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,90})" : "Company internal information" ,
    "^99([\x21-\x22\x25-\x2F\x30-\x39\x41-\x5A\x5F\x61-\x7A]{0,90})" : "Company internal information"
}

scancodes = {
    0: None, 1: u'ESC', 2: u'1', 3: u'2', 4: u'3', 5: u'4', 6: u'5', 7: u'6', 8: u'7', 9: u'8',
    10: u'9', 11: u'0', 12: u'-', 13: u'=', 14: u'BKSP', 15: u'\t', 16: u'Q', 17: u'W', 18: u'E', 19: u'R',
    20: u'T', 21: u'Y', 22: u'U', 23: u'I', 24: u'O', 25: u'P', 26: u'[', 27: u']', 28: u'\n', 29: "",
    30: u'A', 31: u'S', 32: u'D', 33: u'F', 34: u'G', 35: u'H', 36: u'J', 37: u'K', 38: u'L', 39: u';',
    40: u'"', 41: u'`', 42: "", 43: u'\\', 44: u'Z', 45: u'X', 46: u'C', 47: u'V', 48: u'B', 49: u'N',
    50: u'M', 51: u',', 52: u'.', 53: u'/', 54: "", 56: "", 100: ""
}

file = open("/home/pi/codes.csv","a+")

def find_device():
    devices = [evdev.InputDevice(path) for path in evdev.list_devices()]
    for device in devices:
        if("barcode" in device.name.lower()):
            print("\n Barcode scanner found\n")
            #print(device.path , device.name, device.phys)
            return device

def decode_SSCC(buffer):
    buffer = buffer.replace("]C1" , "\t")
    list = buffer.split("\t")
    #split on the known endpoints of information. Next step is apply the regex
    result = []
    #print(len(list))
    for string in list:
        if(string == ''):
            continue
        #print("Pass in Regex Code " + string)
        for regex in SSCC:
            if(re.search(regex, string) is not None):
                SSCCString = re.search(regex, string).group()
                partition = SSCCString.partition(re.split(regex,string)[1])
                result.append("("+str(partition[0]) + ")"+ str(partition[1]))
                list.append(string.partition(SSCCString)[2])
    return ' '.join(result)+"\n"

            

def decode_barcode(buffer):
    #print(buffer)
    #print("Decode: " + buffer)
    if(buffer.startswith("]C1")):
        #SSCC code
        #print("SSCC")
        buffer = decode_SSCC(buffer)
    file.write(str(datetime.datetime.now()) + "\t" + str(buffer))
    file.flush()
    
def evdev_reader():
    device = find_device()
    buffer = ''
    for event in device.read_loop():
        if event.type == ecodes.EV_KEY:
            eventData = categorize(event)
            if eventData.keystate == 1:
                key_lookup = scancodes.get(eventData.scancode)
                #print (u'You Pressed the {} key!'.format(key_lookup))
                buffer = str(buffer) + str(key_lookup)
                if(eventData.scancode == 28):
                    decode_barcode(buffer)
                    buffer = ''
                    continue


evdev_reader()