Created
August 16, 2015 08:21
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This is a simple way to demonstrate how the python file can rewrite it's own source code. This is particularly useful for checking if the program is first run or not. Something like that.
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| import sys | |
| con = '#' | |
| if __name__ == '__main__': | |
| fname = sys.argv[0] | |
| content = open(fname).read() | |
| newfile = open(fname,'w') | |
| if chr(35) in content: | |
| content = content.replace(chr(35),chr(47)) | |
| print"Changed %s to %s" % (chr(35),chr(47)) | |
| elif chr(47) in content: | |
| content = content.replace(chr(47),chr(35)) | |
| print "Changed %s to %s" % (chr(47),chr(35)) | |
| newfile.write(content) | |
| newfile.close() |
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