pd.Series.str.startswith¶ pandas.Series.str.startswith(pat, na=None) Supported Arguments¶ argument datatypes pat String >>> @bodo.jit ... def f(S): ... return S.str.startswith("A") >>> S = pd.Series(["A", "ce", "14", " ", "@", "a n", "^ Ef"]) >>> f(S) 0 True 1 False 2 False 3 False 4 False 5 False 6 False dtype: boolean