DataFrame.convert_objects(copy=False) is ignored #6781
Description
When invoking DataFrame.convert_objects() with copy=False, it does not affect affect the original object.
It should be:
- either mentioned in the documentation (as Make convert_objects less aggressive #3436 suggest),
- enforce it, or
- drop the kw-arg.
>>> import pandas as pd >>> df = pd.DataFrame([['1',2], [3,'4']]) >>> df.dtypes Out[57]: 0 object 1 object dtype: object >>> df.convert_objects(convert_numeric = True, copy = False) >>> df.dtypes Out[59]: 0 object 1 object dtype: objectINSTALLED VERSIONS ------------------ commit: None python: 3.3.3.final.0 python-bits: 64 OS: Windows OS-release: 7 machine: AMD64 processor: Intel64 Family 6 Model 42 Stepping 7, GenuineIntel byteorder: little LC_ALL: None LANG: None pandas: 0.13.1 Cython: 0.20 numpy: 1.8.0 scipy: 0.13.3 statsmodels: 0.5.0 IPython: 1.1.0 sphinx: 1.2.1 patsy: 0.2.1 scikits.timeseries: None dateutil: 2.2 pytz: 2013.9 bottleneck: None tables: 3.1.0 numexpr: 2.3 matplotlib: 1.3.1 openpyxl: None xlrd: 0.9.2 xlwt: None xlsxwriter: None sqlalchemy: 0.9.2 lxml: None bs4: None html5lib: None bq: None apiclient: None