Python3patch.py

# -*- coding: utf-8 -*-
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## Python Generic Measurement Interface
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"""
A tentative and partial patch to upgrade PyGMI to python3
by fixing encoding problems
"""

import os

# yes to All bypass
bypass = False

def ischangeOK(oline,nline):
    global bypass
    if bypass: shall = True
    else:
        msg = 'Replace\n> '+oline+'\nby\n> '+nline+'\n?'
        ans = input("%s ([y]es/ [n]o / yes to [a]ll) " % msg).lower()
        bypass = ans == 'a'
        shall = (ans == 'y') or bypass
    return shall

rep = os.getcwd()


replacements = {".encode('utf8')" : '',
                ",encoding='utf-8'": '',
                ".encode(\'utf8\')" : ""
                }

for root, dirs, files in os.walk(rep):
    for myfile in files:
        needupdate = False
        if myfile[-3:] == '.py' and 'patch' not in myfile:
            with open(root+os.sep+myfile,'r',encoding='utf-8') as f:
                txt = f.readlines()
                print(">>> Checking ", myfile)
                for i, line in enumerate(txt):
                    for key in list(replacements.keys()):
                        if key in line:
                            newline = line.replace(key,replacements[key])
                            if ischangeOK(line,newline):
                                print("line",i,"updated")
                                if bypass:print(line, '>', newline)
                                line = newline
                                needupdate = True

                    txt[i] = line

            if needupdate:
                with open(root+os.sep+myfile, encoding='utf-8', mode="w") as f:
                    f.write("".join(txt))
                print(">>>>>> successfully patched",myfile)
                print("")
            else:
                print(">>>>>> no changes needed in",myfile)