Support various number of digits after the comma in the timestamp %f …

[bbertincourt]

…format

This PR adds a small modification to support various number of digits (1 to 6) after the comma to be picked up and recognized by the "%f" directive as it does with datetime.strptime.

I believe this also answers #127

Current State

from parse import parse

ok_result = parse("{:%H:%M:%S.%f}", "12:34:56.789000")
print(ok_result)

fail_result = parse("{:%H:%M:%S.%f}", "12:34:56.789")
print(fail_result)  # is None

Output[]

<Result (datetime.time(12, 34, 56, 789000),) {}>
None

Desired State

Output[]

<Result (datetime.time(12, 34, 56, 789000),) {}>
<Result (datetime.time(12, 34, 56, 789000),) {}>

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.65%. Comparing base (8ae5d30) to head (b1d2121).
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Additional details and impacted files

@@           Coverage Diff           @@
##           master     #178   +/-   ##
=======================================
  Coverage   94.65%   94.65%           
=======================================
  Files           1        1           
  Lines         543      543           
  Branches      132      132           
=======================================
  Hits          514      514           
  Misses         18       18           
  Partials       11       11           

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[wimglenn]

This seems reasonable. Thanks for the contribution!

[bbertincourt]

@wimglenn I have these weirdly formatted log exports that parse does a really good job on. Helps me really, thanks for maintaining parse.