I would like replace that "None" or "" (empty string) with "NoString" in my dictionary by python , i think a lot of time , but i can't finish it.
this is the dictionary:
{
'Column0':['ID','Company','Name'],
'Column1':[293193,'Exist','Robort Car'],
'Column2':[None,None,""],
'Column3':[None,"Close",None],
'Column4':["",None,None]
}
maybe i will use for and if ,please help me
I think the key here is to understand how to modify values of of a list. a simple for loop over a list would not modify / update values of a list. To do this, one has to use Enumerate, and access the element by index, to be able to successfully modify the value. I would also propose to use isinstance just out of my practice, because imagine a value not to be a list, then I do not want my code to break, and it is not that difficult to secure the code by using isinstance(...,list) per say.
Here is a more basic, easy to understand solution.
d = {
'Column0':['ID','Company','Name'],
'Column1':[293193,'Exist','Robort Car'],
'Column2':[None,None,""],
'Column3':[None,"Close",None],
'Column4':["",None,None]
}
print(d)
for k in d.keys():
l = d[k]
if isinstance(l,list):
for idx, i in enumerate(l):
if l[idx] is None:
l[idx] = "NoString"
print(d)
and the output:
