PY3.W1501

Bad open mode

Python supports r, w, a[, x] modes with b,+, and U (only with r) options.

Noncompliant Code:

Copy
def foo(file_path):
    with open(file_path, 'z') as fh:
        contents = fh.read()

    return contents

Compliant Code:

Copy
def foo(file_path):
    with open(file_path, 'r') as fh:
        contents = fh.read()

    return contents

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