Data format confusion after changing version of Python












0















I have just moved from using Python 2.7.8 to 3.4.5 In the 2.7.8 version the following line of code run without issue and now using the 3.4.5 I get the exception :



AttributeError: 'Series' object has no attribute 'dt'


The line is:



DeptTemplate['Status change date'].dt.strftime('%d/%m/%Y')


Where I am reformatting the data-frame column 'Status change date' to a date format



The only thing I have changed is the version of Python so I am assuming this is the issue.



I've tried to research the fix but am confused as to what I need to change.










share|improve this question

























  • what version of pandas are you using?

    – Chris
    Nov 19 '18 at 15:48











  • Mmm, this doesn't make sense. If anything, it's a pandas issue. What is the name of your script btw? I can't think of a pandas version where this behaviour changed, it seems there's something external causing this issue

    – roganjosh
    Nov 19 '18 at 15:48













  • Thanks. I think you might be right version of pandas I'm using with 2.7.8 is 0.19.2 and the version of pandas I'm using with 3.4.5 is 0.14.1. Is there a way to upgrade my pandas version using conda?

    – Stacey
    Nov 19 '18 at 15:56











  • @Stacey it certainly is the version of pandas...you can do conda update

    – Chris
    Nov 19 '18 at 15:58











  • how have you ended up with 0.14 version? It sounds like some dependency has trashed your installation on python 3. Thats way old! :) conda should not install that version.

    – roganjosh
    Nov 19 '18 at 16:05


















0















I have just moved from using Python 2.7.8 to 3.4.5 In the 2.7.8 version the following line of code run without issue and now using the 3.4.5 I get the exception :



AttributeError: 'Series' object has no attribute 'dt'


The line is:



DeptTemplate['Status change date'].dt.strftime('%d/%m/%Y')


Where I am reformatting the data-frame column 'Status change date' to a date format



The only thing I have changed is the version of Python so I am assuming this is the issue.



I've tried to research the fix but am confused as to what I need to change.










share|improve this question

























  • what version of pandas are you using?

    – Chris
    Nov 19 '18 at 15:48











  • Mmm, this doesn't make sense. If anything, it's a pandas issue. What is the name of your script btw? I can't think of a pandas version where this behaviour changed, it seems there's something external causing this issue

    – roganjosh
    Nov 19 '18 at 15:48













  • Thanks. I think you might be right version of pandas I'm using with 2.7.8 is 0.19.2 and the version of pandas I'm using with 3.4.5 is 0.14.1. Is there a way to upgrade my pandas version using conda?

    – Stacey
    Nov 19 '18 at 15:56











  • @Stacey it certainly is the version of pandas...you can do conda update

    – Chris
    Nov 19 '18 at 15:58











  • how have you ended up with 0.14 version? It sounds like some dependency has trashed your installation on python 3. Thats way old! :) conda should not install that version.

    – roganjosh
    Nov 19 '18 at 16:05
















0












0








0








I have just moved from using Python 2.7.8 to 3.4.5 In the 2.7.8 version the following line of code run without issue and now using the 3.4.5 I get the exception :



AttributeError: 'Series' object has no attribute 'dt'


The line is:



DeptTemplate['Status change date'].dt.strftime('%d/%m/%Y')


Where I am reformatting the data-frame column 'Status change date' to a date format



The only thing I have changed is the version of Python so I am assuming this is the issue.



I've tried to research the fix but am confused as to what I need to change.










share|improve this question
















I have just moved from using Python 2.7.8 to 3.4.5 In the 2.7.8 version the following line of code run without issue and now using the 3.4.5 I get the exception :



AttributeError: 'Series' object has no attribute 'dt'


The line is:



DeptTemplate['Status change date'].dt.strftime('%d/%m/%Y')


Where I am reformatting the data-frame column 'Status change date' to a date format



The only thing I have changed is the version of Python so I am assuming this is the issue.



I've tried to research the fix but am confused as to what I need to change.







python pandas






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 20 '18 at 23:06









halfer

14.5k758111




14.5k758111










asked Nov 19 '18 at 15:44









StaceyStacey

1,08051940




1,08051940













  • what version of pandas are you using?

    – Chris
    Nov 19 '18 at 15:48











  • Mmm, this doesn't make sense. If anything, it's a pandas issue. What is the name of your script btw? I can't think of a pandas version where this behaviour changed, it seems there's something external causing this issue

    – roganjosh
    Nov 19 '18 at 15:48













  • Thanks. I think you might be right version of pandas I'm using with 2.7.8 is 0.19.2 and the version of pandas I'm using with 3.4.5 is 0.14.1. Is there a way to upgrade my pandas version using conda?

    – Stacey
    Nov 19 '18 at 15:56











  • @Stacey it certainly is the version of pandas...you can do conda update

    – Chris
    Nov 19 '18 at 15:58











  • how have you ended up with 0.14 version? It sounds like some dependency has trashed your installation on python 3. Thats way old! :) conda should not install that version.

    – roganjosh
    Nov 19 '18 at 16:05





















  • what version of pandas are you using?

    – Chris
    Nov 19 '18 at 15:48











  • Mmm, this doesn't make sense. If anything, it's a pandas issue. What is the name of your script btw? I can't think of a pandas version where this behaviour changed, it seems there's something external causing this issue

    – roganjosh
    Nov 19 '18 at 15:48













  • Thanks. I think you might be right version of pandas I'm using with 2.7.8 is 0.19.2 and the version of pandas I'm using with 3.4.5 is 0.14.1. Is there a way to upgrade my pandas version using conda?

    – Stacey
    Nov 19 '18 at 15:56











  • @Stacey it certainly is the version of pandas...you can do conda update

    – Chris
    Nov 19 '18 at 15:58











  • how have you ended up with 0.14 version? It sounds like some dependency has trashed your installation on python 3. Thats way old! :) conda should not install that version.

    – roganjosh
    Nov 19 '18 at 16:05



















what version of pandas are you using?

– Chris
Nov 19 '18 at 15:48





what version of pandas are you using?

– Chris
Nov 19 '18 at 15:48













Mmm, this doesn't make sense. If anything, it's a pandas issue. What is the name of your script btw? I can't think of a pandas version where this behaviour changed, it seems there's something external causing this issue

– roganjosh
Nov 19 '18 at 15:48







Mmm, this doesn't make sense. If anything, it's a pandas issue. What is the name of your script btw? I can't think of a pandas version where this behaviour changed, it seems there's something external causing this issue

– roganjosh
Nov 19 '18 at 15:48















Thanks. I think you might be right version of pandas I'm using with 2.7.8 is 0.19.2 and the version of pandas I'm using with 3.4.5 is 0.14.1. Is there a way to upgrade my pandas version using conda?

– Stacey
Nov 19 '18 at 15:56





Thanks. I think you might be right version of pandas I'm using with 2.7.8 is 0.19.2 and the version of pandas I'm using with 3.4.5 is 0.14.1. Is there a way to upgrade my pandas version using conda?

– Stacey
Nov 19 '18 at 15:56













@Stacey it certainly is the version of pandas...you can do conda update

– Chris
Nov 19 '18 at 15:58





@Stacey it certainly is the version of pandas...you can do conda update

– Chris
Nov 19 '18 at 15:58













how have you ended up with 0.14 version? It sounds like some dependency has trashed your installation on python 3. Thats way old! :) conda should not install that version.

– roganjosh
Nov 19 '18 at 16:05







how have you ended up with 0.14 version? It sounds like some dependency has trashed your installation on python 3. Thats way old! :) conda should not install that version.

– roganjosh
Nov 19 '18 at 16:05














1 Answer
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I agree with the comments above, the version of Python shouldn't make a difference here. The dt method is only available on datetime series. So the columns 'Status change date' should already be a datetime before you use this method.



.dt.strftime does not convert a column to a datetime format. Rather it converts a datetime column to a string representation of a datetime






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    I agree with the comments above, the version of Python shouldn't make a difference here. The dt method is only available on datetime series. So the columns 'Status change date' should already be a datetime before you use this method.



    .dt.strftime does not convert a column to a datetime format. Rather it converts a datetime column to a string representation of a datetime






    share|improve this answer




























      0














      I agree with the comments above, the version of Python shouldn't make a difference here. The dt method is only available on datetime series. So the columns 'Status change date' should already be a datetime before you use this method.



      .dt.strftime does not convert a column to a datetime format. Rather it converts a datetime column to a string representation of a datetime






      share|improve this answer


























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        0







        I agree with the comments above, the version of Python shouldn't make a difference here. The dt method is only available on datetime series. So the columns 'Status change date' should already be a datetime before you use this method.



        .dt.strftime does not convert a column to a datetime format. Rather it converts a datetime column to a string representation of a datetime






        share|improve this answer













        I agree with the comments above, the version of Python shouldn't make a difference here. The dt method is only available on datetime series. So the columns 'Status change date' should already be a datetime before you use this method.



        .dt.strftime does not convert a column to a datetime format. Rather it converts a datetime column to a string representation of a datetime







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 19 '18 at 15:58









        RobertRobert

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