CODEWITHSUNDEEP
python-3.xpandasdataframeseries
longfight
longfight

Reputation: 1

AttributeError: 'PandasArray' object has no attribute '_str_replace'

I'm trying to learn pandas to perform a job that includes a lot of wrangling with text data so I've been exploring the methods available for working with text data. I first encountered this problem by trying to use the .str.replace() on a series, for example I tried using it on a Series constructed using the pd.Series() method, and then I tried extracting a column from a dataframe and using the method on that series. Both times I receive an error that the method can't be called on a 'PandasArray' object. I further tested some other string methods such as .str.contains(), .str.startswith(), .str.title() but receive the same error. I closed jupyter notebook and restarted my computer before retesting the code to check I wasn't using the names somewhere else. I tried reinstalling pandas using

conda install pandas --force--reinstall

but I continue to receive the error. I checked the version which is 1.1.5 using

pd.__version__

I am not sure why it's interpreting my series as a 'pandasarray'. The string methods are important for me, but I'm unsure how to solve this. I tried these methods on my personal computer at home using the same code and it worked properly, I thought that reinstalling pandas would fix the issue. Here's the code I tested with multiple times:

import pandas as pd
import numpy as np
testseries = pd.Series(['Foo','Foh',np.nan])
testseries.str.replace(r'Fo','Ba')
testdataframe = pd.DataFrame({'a':['Foo','Foh',np.nan],'b':['Foo','Foh',np.nan]})
testdataframe['a'].str.replace('Fo','Ba')

Error message:

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-11-0067b28206a2> in <module>
----> 1 testdataframe['a'].str.replace('Fo','Ba')

C:\ProgramData\Anaconda3\lib\site-packages\pandas\core\strings\accessor.py in wrapper(self, *args, **kwargs)
     99                 )
    100                 raise TypeError(msg)
--> 101             return func(self, *args, **kwargs)
    102 
    103         wrapper.__name__ = func_name

C:\ProgramData\Anaconda3\lib\site-packages\pandas\core\strings\accessor.py in replace(self, pat, repl, n, case, flags, regex)
   1310                 warnings.warn(msg, FutureWarning, stacklevel=3)
   1311             regex = True
-> 1312         result = self._array._str_replace(
   1313             pat, repl, n=n, case=case, flags=flags, regex=regex
   1314         )

AttributeError: 'PandasArray' object has no attribute '_str_replace'

Upvotes: 0

Views: 3731

Answers (2)

swimmer
swimmer

Reputation: 3313

Faced the same issue using pandas 1.1.3 (in a conda environment). Got it solved by updating to 1.2.0

Upvotes: 1

George
George

Reputation: 338

In my enviroment python 3.8 and pandas version 1.1.3 the code works just fine.In any case you can experiment with numpy ,where you won't have version issues, for string operations and see if it meets your requirements.

Upvotes: 0

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