Python pandas dataframe change content based on string length












2















I have a dataframe like below.



df = pd.DataFrame([111111,123456,12345,234,12,987654],columns=['id'])


so if you look at the row 3,4,5 the length of the ids are less than 6



id
111111
123456
12345
234
12
987654


I want to convert it to below(Basically append zeroes in the front to make it a length of six)



id
111111
123456
012345
000234
000012
987654









share|improve this question























  • Perhaps take a look at stackoverflow.com/questions/134934/…

    – sfjac
    Jan 2 at 2:41
















2















I have a dataframe like below.



df = pd.DataFrame([111111,123456,12345,234,12,987654],columns=['id'])


so if you look at the row 3,4,5 the length of the ids are less than 6



id
111111
123456
12345
234
12
987654


I want to convert it to below(Basically append zeroes in the front to make it a length of six)



id
111111
123456
012345
000234
000012
987654









share|improve this question























  • Perhaps take a look at stackoverflow.com/questions/134934/…

    – sfjac
    Jan 2 at 2:41














2












2








2








I have a dataframe like below.



df = pd.DataFrame([111111,123456,12345,234,12,987654],columns=['id'])


so if you look at the row 3,4,5 the length of the ids are less than 6



id
111111
123456
12345
234
12
987654


I want to convert it to below(Basically append zeroes in the front to make it a length of six)



id
111111
123456
012345
000234
000012
987654









share|improve this question














I have a dataframe like below.



df = pd.DataFrame([111111,123456,12345,234,12,987654],columns=['id'])


so if you look at the row 3,4,5 the length of the ids are less than 6



id
111111
123456
12345
234
12
987654


I want to convert it to below(Basically append zeroes in the front to make it a length of six)



id
111111
123456
012345
000234
000012
987654






python pandas dataframe






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Jan 2 at 2:38









Sandhya ThotakuraSandhya Thotakura

3369




3369













  • Perhaps take a look at stackoverflow.com/questions/134934/…

    – sfjac
    Jan 2 at 2:41



















  • Perhaps take a look at stackoverflow.com/questions/134934/…

    – sfjac
    Jan 2 at 2:41

















Perhaps take a look at stackoverflow.com/questions/134934/…

– sfjac
Jan 2 at 2:41





Perhaps take a look at stackoverflow.com/questions/134934/…

– sfjac
Jan 2 at 2:41












3 Answers
3






active

oldest

votes


















2














Using



df.id.astype(str).str.pad(6,'left','0')
0 111111
1 123456
2 012345
3 000234
4 000012
5 987654
Name: id, dtype: object





share|improve this answer



















  • 1





    @ScottBoston done with that : -)

    – Wen-Ben
    Jan 2 at 2:47











  • Very kind of you.

    – Scott Boston
    Jan 2 at 2:48











  • @SandhyaThotakura yw :_ happy new year

    – Wen-Ben
    Jan 2 at 2:55



















3














Try zfill, first convert integers to string dtype then use string accessor then zfill:



df['id'].astype(str).str.zfill(6)


Output:



0    111111
1 123456
2 012345
3 000234
4 000012
5 987654
Name: id, dtype: object





share|improve this answer



















  • 1





    Thanks for the answer. But I will go with W-B as I feel his answer is more robust. Thanks for teaching me the concept of zfill(int)

    – Sandhya Thotakura
    Jan 2 at 2:53











  • @SandhyaThotakura Happy coding!

    – Scott Boston
    Jan 2 at 2:53



















1














You have to change the datatype to string or else the initial zeroes will be trimmed.
Below is my solution. Hope it helps



df = pd.DataFrame([111111,123456,12345,234,12,987654],columns=['id'])
df = df.astype(str)
df['id'] = df['id'].apply(lambda x: x if len(x)==6 else '0'*(6-len(x))+x)

df:
id
111111
123456
012345
000234
000012
987654





share|improve this answer
























  • Thanks Bhanu for your answer. You are quick one to answer my question. so 1 upvote.

    – Sandhya Thotakura
    Jan 2 at 2:55











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3 Answers
3






active

oldest

votes








3 Answers
3






active

oldest

votes









active

oldest

votes






active

oldest

votes









2














Using



df.id.astype(str).str.pad(6,'left','0')
0 111111
1 123456
2 012345
3 000234
4 000012
5 987654
Name: id, dtype: object





share|improve this answer



















  • 1





    @ScottBoston done with that : -)

    – Wen-Ben
    Jan 2 at 2:47











  • Very kind of you.

    – Scott Boston
    Jan 2 at 2:48











  • @SandhyaThotakura yw :_ happy new year

    – Wen-Ben
    Jan 2 at 2:55
















2














Using



df.id.astype(str).str.pad(6,'left','0')
0 111111
1 123456
2 012345
3 000234
4 000012
5 987654
Name: id, dtype: object





share|improve this answer



















  • 1





    @ScottBoston done with that : -)

    – Wen-Ben
    Jan 2 at 2:47











  • Very kind of you.

    – Scott Boston
    Jan 2 at 2:48











  • @SandhyaThotakura yw :_ happy new year

    – Wen-Ben
    Jan 2 at 2:55














2












2








2







Using



df.id.astype(str).str.pad(6,'left','0')
0 111111
1 123456
2 012345
3 000234
4 000012
5 987654
Name: id, dtype: object





share|improve this answer













Using



df.id.astype(str).str.pad(6,'left','0')
0 111111
1 123456
2 012345
3 000234
4 000012
5 987654
Name: id, dtype: object






share|improve this answer












share|improve this answer



share|improve this answer










answered Jan 2 at 2:45









Wen-BenWen-Ben

118k83469




118k83469








  • 1





    @ScottBoston done with that : -)

    – Wen-Ben
    Jan 2 at 2:47











  • Very kind of you.

    – Scott Boston
    Jan 2 at 2:48











  • @SandhyaThotakura yw :_ happy new year

    – Wen-Ben
    Jan 2 at 2:55














  • 1





    @ScottBoston done with that : -)

    – Wen-Ben
    Jan 2 at 2:47











  • Very kind of you.

    – Scott Boston
    Jan 2 at 2:48











  • @SandhyaThotakura yw :_ happy new year

    – Wen-Ben
    Jan 2 at 2:55








1




1





@ScottBoston done with that : -)

– Wen-Ben
Jan 2 at 2:47





@ScottBoston done with that : -)

– Wen-Ben
Jan 2 at 2:47













Very kind of you.

– Scott Boston
Jan 2 at 2:48





Very kind of you.

– Scott Boston
Jan 2 at 2:48













@SandhyaThotakura yw :_ happy new year

– Wen-Ben
Jan 2 at 2:55





@SandhyaThotakura yw :_ happy new year

– Wen-Ben
Jan 2 at 2:55













3














Try zfill, first convert integers to string dtype then use string accessor then zfill:



df['id'].astype(str).str.zfill(6)


Output:



0    111111
1 123456
2 012345
3 000234
4 000012
5 987654
Name: id, dtype: object





share|improve this answer



















  • 1





    Thanks for the answer. But I will go with W-B as I feel his answer is more robust. Thanks for teaching me the concept of zfill(int)

    – Sandhya Thotakura
    Jan 2 at 2:53











  • @SandhyaThotakura Happy coding!

    – Scott Boston
    Jan 2 at 2:53
















3














Try zfill, first convert integers to string dtype then use string accessor then zfill:



df['id'].astype(str).str.zfill(6)


Output:



0    111111
1 123456
2 012345
3 000234
4 000012
5 987654
Name: id, dtype: object





share|improve this answer



















  • 1





    Thanks for the answer. But I will go with W-B as I feel his answer is more robust. Thanks for teaching me the concept of zfill(int)

    – Sandhya Thotakura
    Jan 2 at 2:53











  • @SandhyaThotakura Happy coding!

    – Scott Boston
    Jan 2 at 2:53














3












3








3







Try zfill, first convert integers to string dtype then use string accessor then zfill:



df['id'].astype(str).str.zfill(6)


Output:



0    111111
1 123456
2 012345
3 000234
4 000012
5 987654
Name: id, dtype: object





share|improve this answer













Try zfill, first convert integers to string dtype then use string accessor then zfill:



df['id'].astype(str).str.zfill(6)


Output:



0    111111
1 123456
2 012345
3 000234
4 000012
5 987654
Name: id, dtype: object






share|improve this answer












share|improve this answer



share|improve this answer










answered Jan 2 at 2:45









Scott BostonScott Boston

56.7k73158




56.7k73158








  • 1





    Thanks for the answer. But I will go with W-B as I feel his answer is more robust. Thanks for teaching me the concept of zfill(int)

    – Sandhya Thotakura
    Jan 2 at 2:53











  • @SandhyaThotakura Happy coding!

    – Scott Boston
    Jan 2 at 2:53














  • 1





    Thanks for the answer. But I will go with W-B as I feel his answer is more robust. Thanks for teaching me the concept of zfill(int)

    – Sandhya Thotakura
    Jan 2 at 2:53











  • @SandhyaThotakura Happy coding!

    – Scott Boston
    Jan 2 at 2:53








1




1





Thanks for the answer. But I will go with W-B as I feel his answer is more robust. Thanks for teaching me the concept of zfill(int)

– Sandhya Thotakura
Jan 2 at 2:53





Thanks for the answer. But I will go with W-B as I feel his answer is more robust. Thanks for teaching me the concept of zfill(int)

– Sandhya Thotakura
Jan 2 at 2:53













@SandhyaThotakura Happy coding!

– Scott Boston
Jan 2 at 2:53





@SandhyaThotakura Happy coding!

– Scott Boston
Jan 2 at 2:53











1














You have to change the datatype to string or else the initial zeroes will be trimmed.
Below is my solution. Hope it helps



df = pd.DataFrame([111111,123456,12345,234,12,987654],columns=['id'])
df = df.astype(str)
df['id'] = df['id'].apply(lambda x: x if len(x)==6 else '0'*(6-len(x))+x)

df:
id
111111
123456
012345
000234
000012
987654





share|improve this answer
























  • Thanks Bhanu for your answer. You are quick one to answer my question. so 1 upvote.

    – Sandhya Thotakura
    Jan 2 at 2:55
















1














You have to change the datatype to string or else the initial zeroes will be trimmed.
Below is my solution. Hope it helps



df = pd.DataFrame([111111,123456,12345,234,12,987654],columns=['id'])
df = df.astype(str)
df['id'] = df['id'].apply(lambda x: x if len(x)==6 else '0'*(6-len(x))+x)

df:
id
111111
123456
012345
000234
000012
987654





share|improve this answer
























  • Thanks Bhanu for your answer. You are quick one to answer my question. so 1 upvote.

    – Sandhya Thotakura
    Jan 2 at 2:55














1












1








1







You have to change the datatype to string or else the initial zeroes will be trimmed.
Below is my solution. Hope it helps



df = pd.DataFrame([111111,123456,12345,234,12,987654],columns=['id'])
df = df.astype(str)
df['id'] = df['id'].apply(lambda x: x if len(x)==6 else '0'*(6-len(x))+x)

df:
id
111111
123456
012345
000234
000012
987654





share|improve this answer













You have to change the datatype to string or else the initial zeroes will be trimmed.
Below is my solution. Hope it helps



df = pd.DataFrame([111111,123456,12345,234,12,987654],columns=['id'])
df = df.astype(str)
df['id'] = df['id'].apply(lambda x: x if len(x)==6 else '0'*(6-len(x))+x)

df:
id
111111
123456
012345
000234
000012
987654






share|improve this answer












share|improve this answer



share|improve this answer










answered Jan 2 at 2:40









Bhanu TezBhanu Tez

41519




41519













  • Thanks Bhanu for your answer. You are quick one to answer my question. so 1 upvote.

    – Sandhya Thotakura
    Jan 2 at 2:55



















  • Thanks Bhanu for your answer. You are quick one to answer my question. so 1 upvote.

    – Sandhya Thotakura
    Jan 2 at 2:55

















Thanks Bhanu for your answer. You are quick one to answer my question. so 1 upvote.

– Sandhya Thotakura
Jan 2 at 2:55





Thanks Bhanu for your answer. You are quick one to answer my question. so 1 upvote.

– Sandhya Thotakura
Jan 2 at 2:55


















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