Get Shapefile Field and Type in PyQGIS

list_field_pyqgis3.py

# -*- coding: utf-8 -*-
# Get Shapefile Field and Type in PyQGIS 
# Author : CHINGCHAI HUMHONG
# Copyright 2019. All rights reserved.
import os
import sys
from osgeo import ogr

location = r"C:\Workspace\pyqgis\pl_village.shp"
dataSource = ogr.Open(location)
lyr = dataSource.GetLayer(0)
lyrDefinition = lyr.GetLayerDefn()

print("Shapefile in a directory : " + location)
print("FieldName -> Type  Width  Precision")
for i in range(lyrDefinition.GetFieldCount()):
    fieldName = lyrDefinition.GetFieldDefn(i).GetName()
    fieldTypeCode = lyrDefinition.GetFieldDefn(i).GetType()
    fieldType = lyrDefinition.GetFieldDefn(i).GetFieldTypeName(fieldTypeCode)
    fieldWidth = lyrDefinition.GetFieldDefn(i).GetWidth()
    fieldPrecision = lyrDefinition.GetFieldDefn(i).GetPrecision()
    
    print (fieldName + " -> " + fieldType + "  " + str(fieldWidth)+ "  " + str(fieldPrecision))
    
print ("\n")
print ("*" * 30)