V2 Prototype code to skip LDraw file header

LS03.dat

0 LSynth Constraint Part - Type 3 - "Hose"
0 Name: LS03.dat
0 Author: John VanZwieten, Steve Bliss, Kevin Clague, Paul Easter, Don Heyse
0 !LDRAW_ORG Unofficial_Part
0 !LICENSE Redistributable under CCAL version 2.0 : see CAreadme.txt

0 BFC CERTIFY CW

0 !KEYWORDS LSynth, RCX, ELECTRIC, CABLE, NXT, FIBER, OPTIC, FLEX, SYSTEM, FLEXIBLE, AXLE, MINIFIG,
0 !KEYWORDS PNEUMATIC, RIBBED, RUBBER, STRING, CHAIN, BAND, BELT, PLASTIC, TREAD, INSIDE, OUTSIDE,
0 !KEYWORDS CROSS, SHOW, HIDE, Synthesis

0 !HISTORY 1999-05-02 [kclague]     Added nipple (taken from 751.dat)
0 !HISTORY 1999-08-19 [SEB]         Changed 4-4con12.dat >> 4-4con1.dat
0 !HISTORY 2002-10-24 [kclague]     Added fin for easy visualization of Y rotation
0 !HISTORY 2007-04-03 [Holly-Wood]  Changed color 47 to 16, BFCed, converted to new header.

1 16 0 5 0 3 0 0 0 -1 0 0 0 3 4-4disc.dat
1 16 0 5 0 3 0 0 0 1 0 0 0 3 4-4edge.dat
1 16 0 0 0 7 0 0 0 1 0 0 0 7 4-4edge.dat
1 16 0 5 0 3 0 0 0 -5 0 0 0 3 4-4cyli.dat
1 16 0 -0.5 -4.9 1 0 0 0 5.5 0 0 0 2 box.dat
1 16 0 0 0 5 0 0 0 1 0 0 0 5 4-4edge.dat
1 16 0 0 0 5 0 0 0 1 0 0 0 5 4-4disc.dat
1 16 0 0 0 3 0 0 0 1 0 0 0 3 4-4edge.dat
1 16 0 0 0 3 0 0 0 -6 0 0 0 3 4-4cyli.dat
1 16 0 -6 0 3 0 0 0 1 0 0 0 3 4-4edge.dat
1 16 0 -6 0 1 0 0 0 -1 0 0 0 1 ring3.dat
1 16 0 -6 0 4 0 0 0 1 0 0 0 4 4-4edge.dat
1 16 0 -6 0 4 0 0 0 -2 0 0 0 4 4-4cyli.dat
1 16 0 -8 0 4 0 0 0 -4 0 0 0 4 4-4con0.dat
0
0 // Inlined: 1 16 0 0 0 10 0 0 0 15 0 0 0 10 zerobase.dat
0
2 4 -10 0 0 10 0 0
2 5 0 -15 0 0 15 0
2 9 0 0 -10 0 0 10
0 +x
2 4 11.6 0 0.2 11.6 0 -0.2
2 4 11.8 0 0 11.4 0 0
2 4 10.4 0 0.4 10.8 0 -0.4
2 4 10.8 0 0.4 10.4 0 -0.4
0 -x
2 4 -11.8 0 0 -11.4 0 0
2 4 -10.4 0 0.4 -10.8 0 -0.4
2 4 -10.8 0 0.4 -10.4 0 -0.4
0 +y
2 5 0.2 17.4 0 -0.2 17.4 0
2 5 0 17.7 0 0 17.1 0
2 5 0 15.9 0 0.4 15.6 0
2 5 0 15.9 0 -0.4 15.9 0
2 5 0 15.9 0 0.4 16.2 0
0 -y
2 5 0 -17.7 0 0 -17.1 0
2 5 0 -15.9 0 0.4 -15.6 0
2 5 0 -15.9 0 -0.4 -15.9 0
2 5 0 -15.9 0 0.4 -16.2 0
0 +z
2 9 0.2 0 11.6 -0.2 0 11.6
2 9 0 0 11.8 0 0 11.4
2 9 0.4 0 10.4 0.4 0 10.8
2 9 0.4 0 10.4 -0.4 0 10.8
2 9 -0.4 0 10.4 -0.4 0 10.8
0 -z
2 9 0 0 -11.8 0 0 -11.4
2 9 0.4 0 -10.4 0.4 0 -10.8
2 9 0.4 0 -10.4 -0.4 0 -10.8
2 9 -0.4 0 -10.4 -0.4 0 -10.8
0

skipheaderv2.py

#! /usr/bin/python
# -*- coding: utf-8 -*-

from __future__ import print_function

myFile = "LDR-Importer_UnicodeDecodeError/LSynth/LS03.dat"

# Only a few of the official META commands,
# http://www.ldraw.org/article/401.html
metaCommands = [b"0 ", b"!LDRAW_ORG", b"LDRAW_ORG", b"Name"]


def removeHeader():
    """Strip part header information"""

    # Read part contents
    with open(myFile, "rb") as f:
        fileContent = f.readlines()

    # Preform a four-fold check:
    # * Blank lines
    # * Lines that start with 0
    # * Lines that do NOT start with a 0 and +
    # * Lines that do NOT start with a 0 and -
    for command in metaCommands:
        for line in fileContent:

            # A line that meet tha criteria was found, remove it from the data
            if (
                line == b"\r\n" or line.startswith(b"0") and
                not (line.startswith(b"0 +") or line.startswith(b"0 -"))
            ):
                del fileContent[fileContent.index(line)]

    print("\nPart content:\n")
    for finalData in fileContent:
        print(finalData)

if __name__ == "__main__":
    removeHeader()