Dictionary multi dimension support

[sripylearn]

Need Help on below error

When i write a code like below

dic1 = {}
dic1['key1']['key2']  = 'Value1'

print(dic1)

Below error is encountered
Traceback (most recent call last):
File "C:/v586150-Prsnl/learning/python/Vz450inP/kirandic.py", line 3, in <module>
dic1['key1']['key2'] = 'Value1'
KeyError: 'key1'

I am forced to define a subkey definition before assignment. Is there a better approach that Python understand the definition of the type and auto instantiate like Perl

dic1 = {}
dic1['key1'] = {}
dic1['key1']['key2']  = 'Value1'

print(dic1)

Process finished with exit code 1