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Regex search and replace example scripts. I’ve got a file named ‘example. I think the most basic form of a search/replace script in python is something. Regular expression patterns are compiled into a. This conflicts with Python’s usage of the same character for the same. Which might be found in a LaTeX file.

#! Pdf Thumbnail Generator .net. /usr/bin/env python import os, sys usage = 'usage:%s search_text replace_text [infile [outfile]]'% os. Basename ( sys. Argv [ 0 ]) if len ( sys. Argv ) 3: input = open ( sys. Argv [ 3 ]) if len ( sys. Argv ) >4: output = open ( sys. Argv [ 4 ], 'w' ) for s in input.

Xreadlines (): output. Replace ( stext, rtext )) # For older versions of Python (1.5.2 and earlier) import # the string module and replace the last two lines with: # # for s in input.readlines(): # output.write(string.replace(s, stext, rtext)). This code as is will not work. The main problem is that the output file object is not closed, so nothing actually gets written to the file. Also xreadlines is not a method of the file object (at least not in Jython, where I tested this). Anyway, give this one a go: #!/usr/bin/env python import os, sys, xreadlines usage = 'usage:%s search_text replace_text [infile [outfile]]'% os.path.basename(sys.argv[0]) if len(sys.argv) 3: input = open(sys.argv[3]) if len(sys.argv) >4: output = open(sys.argv[4], 'w') print 'output = ',output for s in xreadlines.xreadlines(input): print 's= ',s output.write(s.replace(stext, rtext)) if len(sys.argv)>3: input.close() if len(sys.argv) >4: output.close().

Xreadlines is deprecated. Since xreadlines is deprecated the solution should look like this: #!/usr/bin/python import os, sys usage = 'usage:%s search_text replace_text [infile [outfile]]'% os.path.basename(sys.argv[0]) if len(sys.argv) 3: input = open(sys.argv[3]) if len(sys.argv) >4: output = open(sys.argv[4], 'w') for s in input: output.write(s.replace(stext, rtext)) if len(sys.argv)>3: input.close() if len(sys.argv) >4: output.close().