【发布时间】:2018-11-02 20:10:13
【问题描述】:
自从我将 pandas 升级到 0.23.0 后,运行一行以删除空格 df.any_column = df.any_column.str.replace(' ','')
我收到的错误消息如下:
/usr/local/lib/python3.5/dist-packages/pandas/core/strings.py in replace(self, pat, repl, n, case, flags, regex)
2427 def replace(self, pat, repl, n=-1, case=None, flags=0, regex=True):
2428 result = str_replace(self._data, pat, repl, n=n, case=case,
-> 2429 flags=flags, regex=regex)
2430 return self._wrap_result(result)
2431
/usr/local/lib/python3.5/dist-packages/pandas/core/strings.py in str_replace(arr, pat, repl, n, case, flags, regex)
637 raise TypeError("repl must be a string or callable")
638
--> 639 is_compiled_re = is_re(pat)
640 if regex:
641 if is_compiled_re:
/usr/local/lib/python3.5/dist-packages/pandas/core/dtypes/inference.py in is_re(obj)
217 """
218
--> 219 return isinstance(obj, re_type)
220
221
/usr/lib/python3.5/typing.py in __instancecheck__(self, obj)
258
259 def __instancecheck__(self, obj):
--> 260 raise TypeError("Type aliases cannot be used with isinstance().")
261
262 def __subclasscheck__(self, cls):
TypeError: Type aliases cannot be used with isinstance().
我应该如何解决这个问题?
【问题讨论】:
-
有趣...
df.any_column.dtype是什么?你可以试试df.any_column = df.any_column.astype(str).str.replace(' ','')吗?
标签: string python-3.x pandas