diff options
Diffstat (limited to 'numpy/lib/_iotools.py')
| -rw-r--r-- | numpy/lib/_iotools.py | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/numpy/lib/_iotools.py b/numpy/lib/_iotools.py index 8a0697d58..e24583ec1 100644 --- a/numpy/lib/_iotools.py +++ b/numpy/lib/_iotools.py @@ -707,8 +707,8 @@ class StringConverter: self._status = _status self.iterupgrade(value) - def update(self, func, default=None, missing_values=asbytes(''), - locked=False): + def update(self, func, default=None, testing_value=None, + missing_values=asbytes(''), locked=False): """ Set StringConverter attributes directly. @@ -720,6 +720,9 @@ class StringConverter: Value to return by default, that is, when the string to be converted is flagged as missing. If not given, `StringConverter` tries to supply a reasonable default value. + testing_value : str, optional + A string representing a standard input value of the converter. + This string is used to help defining a reasonable default value. missing_values : sequence of str, optional Sequence of strings indicating a missing value. locked : bool, optional @@ -741,7 +744,7 @@ class StringConverter: self.type = self._getsubdtype(default) else: try: - tester = func(asbytes('1')) + tester = func(testing_value or asbytes('1')) except (TypeError, ValueError): tester = None self.type = self._getsubdtype(tester) |