diff options
Diffstat (limited to 'coverage/phystokens.py')
| -rw-r--r-- | coverage/phystokens.py | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/coverage/phystokens.py b/coverage/phystokens.py index bf55e8a3..95776251 100644 --- a/coverage/phystokens.py +++ b/coverage/phystokens.py @@ -148,11 +148,17 @@ generate_tokens = CachedTokenizer().generate_tokens def _source_encoding_py2(source): - """Determine the encoding for `source` (a string), according to PEP 263. + """Determine the encoding for `source`, according to PEP 263. - Returns a string, the name of the encoding. + Arguments: + source (byte string): the text of the program. + + Returns: + string: the name of the encoding. """ + assert isinstance(source, bytes) + # Do this so the detect_encode code we copied will work. readline = iter(source.splitlines(True)).next @@ -240,11 +246,16 @@ def _source_encoding_py2(source): def _source_encoding_py3(source): - """Determine the encoding for `source` (a string), according to PEP 263. + """Determine the encoding for `source`, according to PEP 263. + + Arguments: + source (byte string): the text of the program. - Returns a string, the name of the encoding. + Returns: + string: the name of the encoding. """ + assert isinstance(source, bytes) readline = iter(source.splitlines(True)).__next__ return tokenize.detect_encoding(readline)[0] |