Natural name convention broken for "size" in non-interactive mode.

[mamikonyan]

If there is a column named "size", the member syntax return the NumPy .size property instead of the contents of the column:

$ python -c "import pandas; df=pandas.DataFrame({'size':range(3)}); print df.size; print df['size']"

prints

3
0    0
1    1
2    2
Name: size, dtype: int64

[shoyer]

This is as expected: please read the "Warning" section of the documentation on attribute style access:
http://pandas.pydata.org/pandas-docs/stable/indexing.html#attribute-access

[mamikonyan]

size is not an "existing method name." I don't quite understand which of the conditions in the warning to which you pointed covers this case. Furthermore, this used to work in previous versions.

[jreback]

@mamikony see here: #8847
this was for Numpy compat

[mamikonyan]

I see, thanks.