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import re
def normalize_file_whitespace(text):
"""remove initial and final whitespace on each line, replace any interal
whitespace with one space, and remove trailing blank lines"""
lines_out = []
for l in text.strip().splitlines():
lines_out.append(re.sub(r'\s+', ' ', l.strip()))
return '\n'.join(lines_out)
def filecmp_ignore_whitespace(f1, f2):
"""Compare two files ignoring all leading and trailing whitespace, amount of
whitespace within lines, and any trailing whitespace-only lines."""
with open(f1) as f1_o, open(f2) as f2_o:
same = (normalize_file_whitespace(f1_o.read()) ==
normalize_file_whitespace(f2_o.read()))
return same
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