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Mini Shell
#! /usr/bin/env python
"Replace tabs with spaces in argument files. Print names of changed files."
import os
import sys
import getopt
def main():
tabsize = 8
try:
opts, args = getopt.getopt(sys.argv[1:], "t:")
if not args:
raise getopt.error, "At least one file argument required"
except getopt.error, msg:
print msg
print "usage:", sys.argv[0], "[-t tabwidth] file ..."
return
for optname, optvalue in opts:
if optname == '-t':
tabsize = int(optvalue)
for filename in args:
process(filename, tabsize)
def process(filename, tabsize, verbose=True):
try:
f = open(filename)
text = f.read()
f.close()
except IOError, msg:
print "%r: I/O error: %s" % (filename, msg)
return
newtext = text.expandtabs(tabsize)
if newtext == text:
return
backup = filename + "~"
try:
os.unlink(backup)
except os.error:
pass
try:
os.rename(filename, backup)
except os.error:
pass
with open(filename, "w") as f:
f.write(newtext)
if verbose:
print filename
if __name__ == '__main__':
main()
Zerion Mini Shell 1.0