Iterating Over the Lines of a File

[jussij]

In creating Zeus macros a common action is iterating over the lines of some file.

The 'c:\temp\test.py' code below shows how easy this is using Python:

Code: Select all

import sys

def main():
    filename = 'c:\\temp\\test.py'

    with open(filename) as lines:
        # enumerate the lines of the file
    	for index, line in enumerate(lines):
    	    # Note: Use stdout as the line already has a line feed
    	    sys.stdout.write('[' + str(index) + ']: ' + line)
main()

Running this code produces the following output:

[0]: import sys
[1]:
[2]: def main():
[3]: filename = 'c:\\temp\\test.py'
[4]:
[5]: with open(filename) as lines:
[6]: # enumerate the lines of the file
[7]: for index, line in enumerate(lines):
[8]: # Note: Use stdout as the line already has a line feed
[9]: sys.stdout.write('[' + str(index) + ']: ' + line)
[10]: main()