Problem with creating DataFrame using Dictionary

[ift38375]

Hi,

When i am creating dataframe for desired table then it is working fine as given below

import pandas as pd
diSales= { 2016:{'qtr1':34500,'qtr2':56000,'qtr3':47000,'qtr4':49000},
           2017:{'qtr1':44900,'qtr2':46100,'qtr3':57000,'qtr4':59000},
           2018:{'qtr1':54500,'qtr2':51000,'qtr3':57000,'qtr4':58500},
           2019:{'qtr1':61000}
         }
ks = pd.DataFrame(diSales)
print(ks)

and output for given code is :

Output:
      2016   2017   2018     2019
qtr1  34500  44900  54500  61000.0
qtr2  56000  46100  51000      NaN
qtr3  47000  57000  57000      NaN
qtr4  49000  59000  58500      NaN

But when i am trying to change Column to Mon, Tues , Wed, Thrus then it is giving error

import pandas as pd
diSales= { Mon:{'qtr1':34500,'qtr2':56000,'qtr3':47000,'qtr4':49000},
           Tues:{'qtr1':44900,'qtr2':46100,'qtr3':57000,'qtr4':59000},
           Wed:{'qtr1':54500,'qtr2':51000,'qtr3':57000,'qtr4':58500},
           Thrus:{'qtr1':61000}
         }
ks = pd.DataFrame(diSales)
print(ks)

then it is showing error in output as :

Output:
Traceback (most recent call last):
  File "C:\Users\Bhavik\Desktop\agg.py", line 2, in <module>
    diSales= { Mon:{'qtr1':34500,'qtr2':56000,'qtr3':47000,'qtr4':49000},
NameError: name 'Mon' is not defined

Plz solve my problem..