Question

我想替换文件中的数据类型，但是当我用字符串数组替换时它抛出错误。没有数组就可以正常工作。

我的更改-

[["int","null" ],['string','null'],['string','null'],[{"type": "long","logicalType": "timestamp-micros" },'null'],[{"type": "long","logicalType": "timestamp-micros" },'null'],['float','null']]

没有数组它的工作正常。喜欢

['FLOAT','STRING','STRING','DATETIME','DATETIME','FLOAT']

 dt_type_rep=dt_type.replace([r'NUMBER*([a-zA-Z_][a-zA-Z_0-9]*)',
                                 r'VAR*([a-zA-Z_][a-zA-Z_0-9]*)',
                                 r'CHAR*([a-zA-Z_][a-zA-Z_0-9]*)',
                                 r'DATE*([a-zA-Z_][a-zA-Z_0-9]*)',
                                 r'TIMESTAMP*([a-zA-Z_][a-zA-Z_0-9]*)',
                                 r'FLOAT*([a-zA-Z_][a-zA-Z_0-9]*)'],
                                [["int","null" ],['string','null'],['string','null'],[{"type": "long","logicalType": "timestamp-micros" },'null'],[{"type": "long","logicalType": "timestamp-micros" },'null'],['float','null']],
                                regex=True)

Traceback (most recent call last):
  File "schema_gen_for_data_fusion.py", line 33, in <module>
    regex=True).format()
  File "/home/mangeshc/anaconda3/lib/python3.7/site-packages/pandas/core/series.py", line 3432, in replace
    regex=regex, method=method)
  File "/home/mangeshc/anaconda3/lib/python3.7/site-packages/pandas/core/generic.py", line 5851, in replace
    regex=regex)
  File "/home/mangeshc/anaconda3/lib/python3.7/site-packages/pandas/core/internals.py", line 3754, in replace_list
    mgr=mgr, convert=convert)
  File "/home/mangeshc/anaconda3/lib/python3.7/site-packages/pandas/core/internals.py", line 2465, in replace
    regex=regex, mgr=mgr)
  File "/home/mangeshc/anaconda3/lib/python3.7/site-packages/pandas/core/internals.py", line 2512, in _replace_single
    if isna(value) or not isinstance(value, compat.string_types):
ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()

使用正则表达式replace（）替换字符串时遇到问题

0 个答案: