Mercurial > cpython-lru_cache-weakref

annotate Tools/scripts/untabify.py @ 70626:aa07c1237f4e

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(Merge 3.2) Issue #12016: Reindent decoders of HK and JP codecs
author Victor Stinner <victor.stinner@haypocalc.com>
date Fri, 03 Jun 2011 23:34:32 +0200
parents 3c9232a684ae
children 6cfe2982de42
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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Benjamin Peterson <benjamin@python.org>
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1 #! /usr/bin/env python3
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b826e50e9573 Utility to untabify stubber results.
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2
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3 "Replace tabs with spaces in argument files. Print names of changed files."
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4
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5 import os
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6 import sys
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7 import getopt
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8 import tokenize
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9
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10 def main():
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11 tabsize = 8
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12 try:
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13 opts, args = getopt.getopt(sys.argv[1:], "t:")
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14 if not args:
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15 raise getopt.error("At least one file argument required")
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16 except getopt.error as msg:
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17 print(msg)
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18 print("usage:", sys.argv[0], "[-t tabwidth] file ...")
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19 return
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20 for optname, optvalue in opts:
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21 if optname == '-t':
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22 tabsize = int(optvalue)
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23
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24 for filename in args:
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25 process(filename, tabsize)
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26
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27
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28 def process(filename, tabsize, verbose=True):
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29 try:
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30 with tokenize.open(filename) as f:
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31 text = f.read()
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32 encoding = f.encoding
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33 except IOError as msg:
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34 print("%r: I/O error: %s" % (filename, msg))
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35 return
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36 newtext = text.expandtabs(tabsize)
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37 if newtext == text:
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38 return
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39 backup = filename + "~"
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40 try:
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41 os.unlink(backup)
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42 except os.error:
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43 pass
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44 try:
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45 os.rename(filename, backup)
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46 except os.error:
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47 pass
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48 with open(filename, "w", encoding=encoding) as f:
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49 f.write(newtext)
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parents: 42715
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50 if verbose:
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51 print(filename)
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52
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53
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54 if __name__ == '__main__':
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55 main()