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Turning in my pickling toolbox #57

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Turning in my pickling toolbox #57

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2 changes: 2 additions & 0 deletions blah.txt
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Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
I3
.
2 changes: 2 additions & 0 deletions blah2.txt
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@@ -0,0 +1,2 @@
I2
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12 changes: 10 additions & 2 deletions counter.py
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Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@ def update_counter(file_name, reset=False):

file_name: the file that stores the counter to be incremented. If the file
doesn't exist, a counter is created and initialized to 1.
reset: True if the counter in the file should be rest.
reset: True if the counter in the file should be reset.
returns: the new counter value

>>> update_counter('blah.txt',True)
Expand All @@ -29,7 +29,15 @@ def update_counter(file_name, reset=False):
>>> update_counter('blah2.txt')
2
"""
pass
f = open(file_name, 'r+')
if reset or not exists(file_name):
counter = 1
else:
counter = load(f) + 1
f.seek(0,0)
dump(counter, f)

return counter

if __name__ == '__main__':
if len(sys.argv) < 2:
Expand Down