Top pandas issues

xlrd required for read_excel put not a requirement in setup.py

Build Usage Question

to_hdf(mode='a') overwrites HDF table, does not append

IO HDF5 Usage Question

printing Series in Jupyter/IPython opens and closes a terminal window

Bug Output-Formatting good first issue

Incompatibility between pandas.infer_freq and pandas.to_timedelta

Frequency Usage Question

Dataframe constructor fails when given dict with None value

Bug Missing-data Reshaping

BUG in plotting timeseries data with twinx (different data representation on each ax)

Bug Visualization

BUG: MultiIndex set_levels is not symmetrical with get_level_values

Bug Duplicate MultiIndex

ValueError plotting bar plot from DataFrame with existing Axes

Usage Question

read_csv: European numbers do not work with dates

Bug IO CSV

BUG: Kernel crashing when using shift with groupby when there are NaNs in group column

Bug Duplicate Groupby