Python Count Leading and Trailing Whitespace












0














I have the following dataframe note the leading and trailing whitespace in the stings:



import pandas as pd
data = ['foo ', ' bar', ' baz ', 'beetle juice']
df = pd.DataFrame(data)


I need to count all strings that have leading andor trailing whitespace but ignore whitespace in the middle of the sting.



So, in the example above, the whitespace count should equal 3.



What's the best way to do this?










share|improve this question



























    0














    I have the following dataframe note the leading and trailing whitespace in the stings:



    import pandas as pd
    data = ['foo ', ' bar', ' baz ', 'beetle juice']
    df = pd.DataFrame(data)


    I need to count all strings that have leading andor trailing whitespace but ignore whitespace in the middle of the sting.



    So, in the example above, the whitespace count should equal 3.



    What's the best way to do this?










    share|improve this question

























      0












      0








      0







      I have the following dataframe note the leading and trailing whitespace in the stings:



      import pandas as pd
      data = ['foo ', ' bar', ' baz ', 'beetle juice']
      df = pd.DataFrame(data)


      I need to count all strings that have leading andor trailing whitespace but ignore whitespace in the middle of the sting.



      So, in the example above, the whitespace count should equal 3.



      What's the best way to do this?










      share|improve this question













      I have the following dataframe note the leading and trailing whitespace in the stings:



      import pandas as pd
      data = ['foo ', ' bar', ' baz ', 'beetle juice']
      df = pd.DataFrame(data)


      I need to count all strings that have leading andor trailing whitespace but ignore whitespace in the middle of the sting.



      So, in the example above, the whitespace count should equal 3.



      What's the best way to do this?







      python-3.x pandas dataframe






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 22 at 20:26









      FunnyChef

      6322615




      6322615
























          3 Answers
          3






          active

          oldest

          votes


















          1














          This code does what you want.



          import pandas as pd

          data = ['foo ', ' bar', ' baz ', 'beetle juice']

          df = pd.DataFrame(data)
          count = 0

          for i,row in df.iterrows():
          if row[0][0] == " " or row[0][-1] == " ":
          count += 1

          print(count)





          share|improve this answer































            1














            With .str accessor you can achieve it in one line:



            (df[0].str.startswith(" ") | df[0].str.endswith(" ")).sum()





            share|improve this answer





























              0














              Here is a solution using defaultdict from collection module:



              from collections import defaultdict as df

              data = ['foo ', ' bar', ' baz ', 'beetle juice']
              result = df(int)

              for elm in data:
              if elm.startswith(' '):
              result['leading'] += 1
              elif elm.endswith(' '):
              result['trailing'] += 1

              print(result)
              print(dict(result))
              count = sum(k for k in result.values())
              print(count)


              Output:



              defaultdict(<class 'int'>, {'trailing': 1, 'leading': 2})
              {'trailing': 1, 'leading': 2}
              3





              share|improve this answer





















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                3 Answers
                3






                active

                oldest

                votes








                3 Answers
                3






                active

                oldest

                votes









                active

                oldest

                votes






                active

                oldest

                votes









                1














                This code does what you want.



                import pandas as pd

                data = ['foo ', ' bar', ' baz ', 'beetle juice']

                df = pd.DataFrame(data)
                count = 0

                for i,row in df.iterrows():
                if row[0][0] == " " or row[0][-1] == " ":
                count += 1

                print(count)





                share|improve this answer




























                  1














                  This code does what you want.



                  import pandas as pd

                  data = ['foo ', ' bar', ' baz ', 'beetle juice']

                  df = pd.DataFrame(data)
                  count = 0

                  for i,row in df.iterrows():
                  if row[0][0] == " " or row[0][-1] == " ":
                  count += 1

                  print(count)





                  share|improve this answer


























                    1












                    1








                    1






                    This code does what you want.



                    import pandas as pd

                    data = ['foo ', ' bar', ' baz ', 'beetle juice']

                    df = pd.DataFrame(data)
                    count = 0

                    for i,row in df.iterrows():
                    if row[0][0] == " " or row[0][-1] == " ":
                    count += 1

                    print(count)





                    share|improve this answer














                    This code does what you want.



                    import pandas as pd

                    data = ['foo ', ' bar', ' baz ', 'beetle juice']

                    df = pd.DataFrame(data)
                    count = 0

                    for i,row in df.iterrows():
                    if row[0][0] == " " or row[0][-1] == " ":
                    count += 1

                    print(count)






                    share|improve this answer














                    share|improve this answer



                    share|improve this answer








                    edited Nov 22 at 20:42

























                    answered Nov 22 at 20:37









                    Esteban Quiros

                    1015




                    1015

























                        1














                        With .str accessor you can achieve it in one line:



                        (df[0].str.startswith(" ") | df[0].str.endswith(" ")).sum()





                        share|improve this answer


























                          1














                          With .str accessor you can achieve it in one line:



                          (df[0].str.startswith(" ") | df[0].str.endswith(" ")).sum()





                          share|improve this answer
























                            1












                            1








                            1






                            With .str accessor you can achieve it in one line:



                            (df[0].str.startswith(" ") | df[0].str.endswith(" ")).sum()





                            share|improve this answer












                            With .str accessor you can achieve it in one line:



                            (df[0].str.startswith(" ") | df[0].str.endswith(" ")).sum()






                            share|improve this answer












                            share|improve this answer



                            share|improve this answer










                            answered Nov 22 at 21:03









                            Julian Peller

                            849511




                            849511























                                0














                                Here is a solution using defaultdict from collection module:



                                from collections import defaultdict as df

                                data = ['foo ', ' bar', ' baz ', 'beetle juice']
                                result = df(int)

                                for elm in data:
                                if elm.startswith(' '):
                                result['leading'] += 1
                                elif elm.endswith(' '):
                                result['trailing'] += 1

                                print(result)
                                print(dict(result))
                                count = sum(k for k in result.values())
                                print(count)


                                Output:



                                defaultdict(<class 'int'>, {'trailing': 1, 'leading': 2})
                                {'trailing': 1, 'leading': 2}
                                3





                                share|improve this answer


























                                  0














                                  Here is a solution using defaultdict from collection module:



                                  from collections import defaultdict as df

                                  data = ['foo ', ' bar', ' baz ', 'beetle juice']
                                  result = df(int)

                                  for elm in data:
                                  if elm.startswith(' '):
                                  result['leading'] += 1
                                  elif elm.endswith(' '):
                                  result['trailing'] += 1

                                  print(result)
                                  print(dict(result))
                                  count = sum(k for k in result.values())
                                  print(count)


                                  Output:



                                  defaultdict(<class 'int'>, {'trailing': 1, 'leading': 2})
                                  {'trailing': 1, 'leading': 2}
                                  3





                                  share|improve this answer
























                                    0












                                    0








                                    0






                                    Here is a solution using defaultdict from collection module:



                                    from collections import defaultdict as df

                                    data = ['foo ', ' bar', ' baz ', 'beetle juice']
                                    result = df(int)

                                    for elm in data:
                                    if elm.startswith(' '):
                                    result['leading'] += 1
                                    elif elm.endswith(' '):
                                    result['trailing'] += 1

                                    print(result)
                                    print(dict(result))
                                    count = sum(k for k in result.values())
                                    print(count)


                                    Output:



                                    defaultdict(<class 'int'>, {'trailing': 1, 'leading': 2})
                                    {'trailing': 1, 'leading': 2}
                                    3





                                    share|improve this answer












                                    Here is a solution using defaultdict from collection module:



                                    from collections import defaultdict as df

                                    data = ['foo ', ' bar', ' baz ', 'beetle juice']
                                    result = df(int)

                                    for elm in data:
                                    if elm.startswith(' '):
                                    result['leading'] += 1
                                    elif elm.endswith(' '):
                                    result['trailing'] += 1

                                    print(result)
                                    print(dict(result))
                                    count = sum(k for k in result.values())
                                    print(count)


                                    Output:



                                    defaultdict(<class 'int'>, {'trailing': 1, 'leading': 2})
                                    {'trailing': 1, 'leading': 2}
                                    3






                                    share|improve this answer












                                    share|improve this answer



                                    share|improve this answer










                                    answered Nov 22 at 20:45









                                    Chiheb Nexus

                                    4,72031527




                                    4,72031527






























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