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+--- Thread: Beginner Q: failure to find string in list (/thread-9032.html)
Beginner Q: failure to find string in list - Jenny - Mar-18-2018
I am a total beginner, so likely to be missing something obvious here. First post so be kind!
print('Looking for ', Name_key, 'in', headerList)
Name_listIndex = headerList.index(Name_key)The print function acts out exactly as I expect, giving me confidence that my variables are correctly set:>>> Looking for ['IAU Name'] in ['IAU Name', 'Designation', 'ID', 'Const.', '#', 'WDS_J', 'Vmag', 'RA(J2000)', 'Dec(J2000)', 'Approval Date']
Next I expected it to set Name_listIndex to match the index at which Name_key is found in headerList. So I was expecting it to set Name_listIndex = 0. Instead I get:
>>> ValueError: ['IAU Name'] is not in list
It works fine using a dummy list and key variable, just not with the real data. I am too confused.
Thanks for any support!
Jenny
RE: Beginner Q: failure to find string in list - snippsat - Mar-18-2018
You are looking for list
['IAU Name'],but in list it's a string 'IAU Name'.>>> lst = ['IAU Name', 'Designation', 'ID', 'Const.', '#', 'WDS_J', 'Vmag', 'RA(J2000)', 'Dec(J2000)', 'Approval Date']
>>> name = ['IAU Name']
>>> if name in lst:
... print('True')
... lst.index(name)
...
>>> name = 'IAU Name'
>>> if name in lst:
... print('True')
... lst.index(name)
...
True
0
RE: Beginner Q: failure to find string in list - Jenny - Mar-18-2018
Awesome thank you.