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ENH: Allow unstacking by level name #142

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ENH: Allow unstacking by level name #142

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10 changes: 8 additions & 2 deletions pandas/core/reshape.py
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Original file line number Diff line number Diff line change
Expand Up @@ -17,8 +17,8 @@ class _Unstacker(object):

Parameters
----------
level : int, default last level
Level to "unstack"
level : int or str, default last level
Level to "unstack". Accepts a name for the level.

Examples
--------
Expand Down Expand Up @@ -53,6 +53,12 @@ def __init__(self, values, index, level=-1, value_columns=None):

self.index = index

if not isinstance(level, int):
try:
level = index.names.index(level)
except:
raise ValueError("level %s not in index names" % s)

if level < 0:
level += index.nlevels
self.level = level
Expand Down