Python Pandas : How to Create DataFrame from dictionary ?

How to create DataFrame from dictionary in Python ?

In this article we will discuss about various ways of creating DataFrame object from dictionaries.

So, let's start exploring different approaches to achieve this result.

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Method-1 : Create DataFrame from Dictionary using default Constructor :

In python DataFrame constructor accepts n-D array, dictionaries etc.

Syntax : pandas.DataFrame(data=None, index=None, columns=None, dtype=None, copy=False)
#program :

# import pandas library
import pandas as pd
  
# dictionary with list object in values
data = {
    'Name' : ['Satya', 'Omm', 'Rakesh'],
    'Age' : [21, 21, 23],
    'From' : ['BBSR', 'RKL', 'KDP']
}
  
# creating a Dataframe object 
df_obj = pd.DataFrame(data)
  
df_obj



Output :

         Name    Age   From
0      Satya      21      BBSR
1      Omm      21      RKL
2      Rakesh    23       KDP

Method-2 : Create DataFrame from Dictionary with custom indexes :

#program :

# import pandas library
import pandas as pd
  
# dictionary with list object in values
data = {
    'Name' : ['Satya', 'Omm', 'Rakesh'],
    'Age' : [21, 21, 23],
    'From' : ['BBSR', 'RKL', 'KDP']
}
  
# creating a Dataframe object 
df_obj = pd.DataFrame(data, index = ['a','b','c'])
  
df_obj


Output :
        Name    Age     From
a      Satya      21      BBSR
b     Omm       21     RKL
c     Rakesh     23     KDP

Method-3 : Create DataFrame from Dictionary and skip data

#program :

# import pandas library
import pandas as pd
  
# dictionary with list object in values
data = {
    'Name' : ['Satya', 'Omm', 'Rakesh'],
    'Age' : [21, 21, 23],
    'From' : ['BBSR', 'RKL', 'KDP']
}
  
# creating a Dataframe object 
#items skipped with key 'Age'
df_obj = pd.DataFrame(data, columns=['name', 'From'])
  
df_obj



Output :
       Name        From
0      Satya        BBSR
1     Omm          RKL
2     Rakesh       KDP

Method-4 : Create DataFrame from Dictionary with different Orientation

DataFrame.from_dict()
DataFrame.from_dict(data, orient='columns', dtype=None)
#program :

# import pandas library
import pandas as pd
  
# dictionary with list object in values
data = {
    'Name' : ['Satya', 'Omm', 'Rakesh'],
    'Age' : [21, 21, 23],
    'From' : ['BBSR', 'RKL', 'KDP']
}
  
# creating a Dataframe object 
#items skipped with key 'Age'
df_obj = pd.DataFrame(data,orient='index')
  
df_obj



Output :

             0           1            2

Aame   Satya   Omm     Rakesh

From     BBSR    RKL       KDP

Age       21         21         23

Method-5 : Create DataFrame from nested Dictionary :

#program :

# import pandas library
import pandas as pd
  
# dictionary with list object in values
# Nested Dictionary
data = { 
0 : {
    'Name' : 'Satya',
    'Age' : 21,
    'From' : 'BBSR'
    },
1 : {
    'Name' : 'Omm',
    'Age' : 21,
    'From' : 'RKL'
    },
2 : {
    'Name' : 'Rakesh',
    'Age' : 23,
    'From' : 'KDP'
    }
}
  
# creating a Dataframe object 
#items skipped with key 'Age'
df_obj = pd.DataFrame(data)
  
df_obj


Output :
             0           1            2
Aame   Satya   Omm     Rakesh
From     BBSR    RKL       KDP
Age       21         21         23

Read more Articles on Python Data Analysis Using Padas - Creating Dataframe Objects:

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Python

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PythonProgramming