Top "Keyerror" questions

In languages such as Python and Ruby, a KeyError is a specific exception type that is raised when a key could not be found within a dictionary (mapping).

Pandas KeyError using pivot

I'm new to Python and I would like to use Python to replicate a common excel task. If such a …

python pandas pivot-table keyerror
Pandas seems to ignore first column name when reading tab-delimited data, gives KeyError

I am using pandas 0.12.0 in ipython3 on Ubuntu 13.10, in order to wrangle large tab-delimited datasets in txt files. Using read_…

python pandas ipython tab-delimited keyerror
Key Error when key is in dictionary

Just trying to pull some lat/lon info from EXIF data on a bunch of photos, but code is throwing …

python exif keyerror
pandas dataframe index datetime.date converts to object KeyError

I retrieve some data from my MySQL database. This data has the date (not datetime) in one column and some …

mysql date pandas dataframe keyerror
Python / Pandas - KeyError merging dataframes

I have two dataframes I'm trying to merge: target: version city_id code id 4 2 4 5736201000175 26 2 3 8290265000183 27 3 3 9529184000156 30 3 3 9263064000150 34 2 3 9312770000144 54 1 3 8407830000140 55 1 3 5590100000139 city: federation_unit_id name id 3 8 …

python pandas merge keyerror
KeyError: Not in index, using a keys generated from a Pandas dataframe on itself

I have two columns in a Pandas DataFrame that has datetime as its index. The two column contain data measuring …

python-2.7 pandas keyerror