回答編集履歴
1
t を Datetimeに変換するの忘れてた
answer
CHANGED
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@@ -20,8 +20,8 @@
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2019-11-20 03:45:00,5
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"""
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-
df1 = pd.read_csv(io.StringIO(csv1), index_col='t')
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df1 = pd.read_csv(io.StringIO(csv1), index_col='t', parse_dates=['t'])
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-
df2 = pd.read_csv(io.StringIO(csv2), index_col='t')
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df2 = pd.read_csv(io.StringIO(csv2), index_col='t', parse_dates=['t'])
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df1.update(df2.rename(columns={'content2':'content1'}))
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