Trying to compare the contents of two excel files and save the difference by python











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I have two excel files containing multiple lines of excel from a datalogger, and I need to compare the two files with 3 similar columns (anum,bnum,date,time) but with different column durations, and then save the difference into a third excel file.



***excel file 1:



anum            bnum duration   date     time

02473082424 0969755655  12  2018-08-04  10:53:04

02473082424 02435543470 17  2018-08-04  10:53:04

02473082424 01653559999 19  2018-08-04  10:53:06

02473082424 02437633476 63  2018-08-04  10:52:46

02473082424 02432262638 23  2018-08-04  10:53:26

02473082424 02435537928 40  2018-08-04  10:53:18

02473082424 0936467084  20  2018-08-04  10:53:42


***excel file 2:



   anum       bnum   duration   date     time

    02473082424 0969755655  16  2018-08-04  10:53:04

    02473082424 02435543470 17  2018-08-04  10:53:04

    02473082424 01653559999 23  2018-08-04  10:53:06

    02473082424 02437633476 63  2018-08-04  10:52:46

    02473082424 02432262638 23  2018-08-04  10:53:26

    02473082424 02435537928 10  2018-08-04  10:53:18

    02473082424 0936467084  20  2018-08-04  10:53:42





excel pandas compare difference difflib







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    up vote
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    I have two excel files containing multiple lines of excel from a datalogger, and I need to compare the two files with 3 similar columns (anum,bnum,date,time) but with different column durations, and then save the difference into a third excel file.



    ***excel file 1:



    anum            bnum duration   date     time
    
02473082424 0969755655  12  2018-08-04  10:53:04
    
02473082424 02435543470 17  2018-08-04  10:53:04
    
02473082424 01653559999 19  2018-08-04  10:53:06
    
02473082424 02437633476 63  2018-08-04  10:52:46
    
02473082424 02432262638 23  2018-08-04  10:53:26
    
02473082424 02435537928 40  2018-08-04  10:53:18
    
02473082424 0936467084  20  2018-08-04  10:53:42


    ***excel file 2:



       anum       bnum   duration   date     time
    
    02473082424 0969755655  16  2018-08-04  10:53:04
    
    02473082424 02435543470 17  2018-08-04  10:53:04
    
    02473082424 01653559999 23  2018-08-04  10:53:06
    
    02473082424 02437633476 63  2018-08-04  10:52:46
    
    02473082424 02432262638 23  2018-08-04  10:53:26
    
    02473082424 02435537928 10  2018-08-04  10:53:18
    
    02473082424 0936467084  20  2018-08-04  10:53:42





    excel pandas compare difference difflib







    share|improve this question


























      up vote
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      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I have two excel files containing multiple lines of excel from a datalogger, and I need to compare the two files with 3 similar columns (anum,bnum,date,time) but with different column durations, and then save the difference into a third excel file.



      ***excel file 1:



      anum            bnum duration   date     time
      
02473082424 0969755655  12  2018-08-04  10:53:04
      
02473082424 02435543470 17  2018-08-04  10:53:04
      
02473082424 01653559999 19  2018-08-04  10:53:06
      
02473082424 02437633476 63  2018-08-04  10:52:46
      
02473082424 02432262638 23  2018-08-04  10:53:26
      
02473082424 02435537928 40  2018-08-04  10:53:18
      
02473082424 0936467084  20  2018-08-04  10:53:42


      ***excel file 2:



         anum       bnum   duration   date     time
      
    02473082424 0969755655  16  2018-08-04  10:53:04
      
    02473082424 02435543470 17  2018-08-04  10:53:04
      
    02473082424 01653559999 23  2018-08-04  10:53:06
      
    02473082424 02437633476 63  2018-08-04  10:52:46
      
    02473082424 02432262638 23  2018-08-04  10:53:26
      
    02473082424 02435537928 10  2018-08-04  10:53:18
      
    02473082424 0936467084  20  2018-08-04  10:53:42





      excel pandas compare difference difflib







      share|improve this question















      I have two excel files containing multiple lines of excel from a datalogger, and I need to compare the two files with 3 similar columns (anum,bnum,date,time) but with different column durations, and then save the difference into a third excel file.



      ***excel file 1:



      anum            bnum duration   date     time
      
02473082424 0969755655  12  2018-08-04  10:53:04
      
02473082424 02435543470 17  2018-08-04  10:53:04
      
02473082424 01653559999 19  2018-08-04  10:53:06
      
02473082424 02437633476 63  2018-08-04  10:52:46
      
02473082424 02432262638 23  2018-08-04  10:53:26
      
02473082424 02435537928 40  2018-08-04  10:53:18
      
02473082424 0936467084  20  2018-08-04  10:53:42


      ***excel file 2:



         anum       bnum   duration   date     time
      
    02473082424 0969755655  16  2018-08-04  10:53:04
      
    02473082424 02435543470 17  2018-08-04  10:53:04
      
    02473082424 01653559999 23  2018-08-04  10:53:06
      
    02473082424 02437633476 63  2018-08-04  10:52:46
      
    02473082424 02432262638 23  2018-08-04  10:53:26
      
    02473082424 02435537928 10  2018-08-04  10:53:18
      
    02473082424 0936467084  20  2018-08-04  10:53:42





      excel pandas compare difference difflib




      excel pandas compare difference difflib






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      edited Nov 8 at 3:52









      Killerrabbit

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      asked Nov 8 at 2:56









      Phong Doan

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          You can first read both excel files using pandas.read_excel
          into two dataframes df1 and df2 Then : 



          df1.rename(columns={'duration':'duration1'},inplace=True)
          
df2.rename(columns={'duration':'duration2'},inplace=True)
          
df=df1.merge(df2)
          
df['duration']=df['duration2']-df['duration1']
          
writer = pd.ExcelWriter(excel_file_3)
          
df[['anum','bnum','duration','date','time]].to_excel(writer,'Sheet1')





          share|improve this answer





















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            up vote
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            You can first read both excel files using pandas.read_excel
            into two dataframes df1 and df2 Then : 



            df1.rename(columns={'duration':'duration1'},inplace=True)
            
df2.rename(columns={'duration':'duration2'},inplace=True)
            
df=df1.merge(df2)
            
df['duration']=df['duration2']-df['duration1']
            
writer = pd.ExcelWriter(excel_file_3)
            
df[['anum','bnum','duration','date','time]].to_excel(writer,'Sheet1')





            share|improve this answer

























              up vote
              0
              down vote













              You can first read both excel files using pandas.read_excel
              into two dataframes df1 and df2 Then : 



              df1.rename(columns={'duration':'duration1'},inplace=True)
              
df2.rename(columns={'duration':'duration2'},inplace=True)
              
df=df1.merge(df2)
              
df['duration']=df['duration2']-df['duration1']
              
writer = pd.ExcelWriter(excel_file_3)
              
df[['anum','bnum','duration','date','time]].to_excel(writer,'Sheet1')





              share|improve this answer























                up vote
                0
                down vote










                up vote
                0
                down vote









                You can first read both excel files using pandas.read_excel
                into two dataframes df1 and df2 Then : 



                df1.rename(columns={'duration':'duration1'},inplace=True)
                
df2.rename(columns={'duration':'duration2'},inplace=True)
                
df=df1.merge(df2)
                
df['duration']=df['duration2']-df['duration1']
                
writer = pd.ExcelWriter(excel_file_3)
                
df[['anum','bnum','duration','date','time]].to_excel(writer,'Sheet1')





                share|improve this answer












                You can first read both excel files using pandas.read_excel
                into two dataframes df1 and df2 Then : 



                df1.rename(columns={'duration':'duration1'},inplace=True)
                
df2.rename(columns={'duration':'duration2'},inplace=True)
                
df=df1.merge(df2)
                
df['duration']=df['duration2']-df['duration1']
                
writer = pd.ExcelWriter(excel_file_3)
                
df[['anum','bnum','duration','date','time]].to_excel(writer,'Sheet1')






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 8 at 13:25









                ahmed2512

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