golden hour

/usr/lib64/python2.7/Demo/scripts

File/Folder	Size	Actions
README	1009 B
beer.py	459 B
beer.pyc	703 B
beer.pyo	703 B
eqfix.py	6.16 KB
eqfix.pyc	4.52 KB
eqfix.pyo	4.52 KB
fact.py	1.11 KB
fact.pyc	1.14 KB
fact.pyo	1.14 KB
find-uname.py	1.18 KB
find-uname.pyc	1.47 KB
find-uname.pyo	1.47 KB
from.py	874 B
from.pyc	749 B
from.pyo	749 B
lpwatch.py	2.77 KB
lpwatch.pyc	2.54 KB
lpwatch.pyo	2.54 KB
makedir.py	510 B
makedir.pyc	732 B
makedir.pyo	732 B
markov.py	3.51 KB
markov.pyc	3.93 KB
markov.pyo	3.93 KB
mboxconvert.py	3.11 KB
mboxconvert.pyc	3.17 KB
mboxconvert.pyo	3.17 KB
morse.py	4.21 KB
morse.pyc	4.33 KB
morse.pyo	4.33 KB
newslist.doc	2.36 KB
newslist.py	11.17 KB
newslist.pyc	7.55 KB
newslist.pyo	7.55 KB
pi.py	888 B
pi.pyc	921 B
pi.pyo	921 B
pp.py	3.73 KB
pp.pyc	2.28 KB
pp.pyo	2.28 KB
primes.py	603 B
primes.pyc	921 B
primes.pyo	921 B
queens.py	2.19 KB
queens.pyc	2.95 KB
queens.pyo	2.95 KB
script.py	962 B
script.pyc	1.21 KB
script.pyo	1.21 KB
unbirthday.py	3.07 KB
unbirthday.pyc	2.93 KB
unbirthday.pyo	2.93 KB
update.py	2.69 KB
update.pyc	2.69 KB
update.pyo	2.69 KB

Edit: update.py

#! /usr/bin/env python

# Update a bunch of files according to a script.
# The input file contains lines of the form <filename>:<lineno>:<text>,
# meaning that the given line of the given file is to be replaced
# by the given text.  This is useful for performing global substitutions
# on grep output:

import os
import sys
import re

pat = '^([^: \t\n]+):([1-9][0-9]*):'
prog = re.compile(pat)

class FileObj:
    def __init__(self, filename):
        self.filename = filename
        self.changed = 0
        try:
            self.lines = open(filename, 'r').readlines()
        except IOError, msg:
            print '*** Can\'t open "%s":' % filename, msg
            self.lines = None
            return
        print 'diffing', self.filename

def finish(self):
        if not self.changed:
            print 'no changes to', self.filename
            return
        try:
            os.rename(self.filename, self.filename + '~')
            fp = open(self.filename, 'w')
        except (os.error, IOError), msg:
            print '*** Can\'t rewrite "%s":' % self.filename, msg
            return
        print 'writing', self.filename
        for line in self.lines:
            fp.write(line)
        fp.close()
        self.changed = 0

def process(self, lineno, rest):
        if self.lines is None:
            print '(not processed): %s:%s:%s' % (
                      self.filename, lineno, rest),
            return
        i = eval(lineno) - 1
        if not 0 <= i < len(self.lines):
            print '*** Line number out of range: %s:%s:%s' % (
                      self.filename, lineno, rest),
            return
        if self.lines[i] == rest:
            print '(no change): %s:%s:%s' % (
                      self.filename, lineno, rest),
            return
        if not self.changed:
            self.changed = 1
        print '%sc%s' % (lineno, lineno)
        print '<', self.lines[i],
        print '---'
        self.lines[i] = rest
        print '>', self.lines[i],

def main():
    if sys.argv[1:]:
        try:
            fp = open(sys.argv[1], 'r')
        except IOError, msg:
            print 'Can\'t open "%s":' % sys.argv[1], msg
            sys.exit(1)
    else:
        fp = sys.stdin
    curfile = None
    while 1:
        line = fp.readline()
        if not line:
            if curfile: curfile.finish()
            break
        n = prog.match(line)
        if n < 0:
            print 'Funny line:', line,
            continue
        filename, lineno = prog.group(1, 2)
        if not curfile or filename <> curfile.filename:
            if curfile: curfile.finish()
            curfile = FileObj(filename)
        curfile.process(lineno, line[n:])

if __name__ == "__main__":
    main()