DOC: .loc doesn't document that it can take sets or dicts as arguments · Issue #42825 · pandas-dev/pandas (original) (raw)
Location of the documentation
Documentation problem
Surprisingly, the following code works:
import pandas as pd
df = pd.DataFrame([["a", 1], ["b", 2], ["c", 3]], columns=["let", "num"]).set_index( "let" )
dfl = df.loc[set(["a", "b"]), :]
print(dfl)
dd = {"a": 10, "c": 12}
dfd = df.loc[dd, "num"]
print(dfd)
In the documentation, we don't say that you can pass a set or a dict as one of the arguments to .loc .
So either we update the documentation, or maybe we should be raising an Exception?