pandas convert all column names to lowercase
# rename Pandas columns to lower case
df.columns= df.columns.str.lower()
df.columns
Index(['column1', 'column2', 'column3'], dtype='object')
pandas convert all column names to lowercase
# rename Pandas columns to lower case
df.columns= df.columns.str.lower()
df.columns
Index(['column1', 'column2', 'column3'], dtype='object')
pandas check match string lowercase
# credit to the Stack Overflow user in the source link
# (?i) is the regex patter to tell the re module to ignore case
df["check"] = df["str_type_col"].str.contains("(?i)your_string")
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