tests/sitecustomize.py

tests: make 'f' tool open files in binary mode when hexdumping

On Windows, the various bundle hexdumps were being truncated at the first
occurrence of 0x1a.  The line endings in the sequence generation then needs to
be standardized on LF so that the file is the same for the tool tests.

import os

if os.environ.get('COVERAGE_PROCESS_START'):
    try:
        import coverage
        import random

        # uuid is better, but not available in Python 2.4.
        covpath = os.path.join(os.environ['COVERAGE_DIR'],
                               'cov.%s' % random.randrange(0, 1000000000000))
        cov = coverage.coverage(data_file=covpath, auto_data=True)
        cov._warn_no_data = False
        cov._warn_unimported_source = False
        cov.start()
    except ImportError:
        pass