【python】修改指定文件的编码格式

1、安装chardet 

2、安装完后，在python安装目录会多出2个文件夹

import chardet
import codecs

def convert_file_to_utf8(filename):
    # !!! does not backup the origin file
    content = codecs.open(filename, 'r').read()
    source_encoding = chardet.detect(content)['encoding']
    if source_encoding == None:
        print("encoding is None: %s"%filename)
        return
    print("[%s]--->[%s]: %s"%(filename,source_encoding,'utf-8'))
    if source_encoding != 'utf-8':
        content = content.decode(source_encoding, 'ignore') .encode("utf-8")
        codecs.open(filename, 'w', encoding='utf-8').write(content)

if __name__ == "__main__":
    convert_file_to_utf8("D:/test.txt")