Hei all,
im trying to create a list of variables for further use:
Els = raw_input("Are there any further elements you would like to
include? if so type the element, eg, Pd. If not type No: ")
if Els != 'No':
el = Els in pt
while el == 1 and Els != 'Next':
elements = []
elements.insert(-1, Els)
Els = raw_input("Which further element would you like to
include, eg, Pd, if not type Next: ")
el = Els in pt
while el == 0 and Els != 'Next':
Els = raw_input("This is not an element in the periodic
table, please try again, eg Pd, If you dont wish to include any more,
type Next: ")
if el == 1:
elements.insert(-1, Els)
while el == 0:
Els = raw_input("This is not an element in the periodic
table, please try again, eg Pd. If you dont wish to include any more,
type Next: ")
print elements
this works to a certain extent but gets stuck on some loop. Im a
beginner and am not sure where im going wrong.
here is a portion of the dictionary containing typical elements:
pt = {'H': 1.00794, 'He': 4.002602, 'Li': 6.941, 'Be': 9.012182, 'B':
10.811}
Ali
--
Dr. Alistair King
Research Chemist,
Laboratory of Organic Chemistry,
Department of Chemistry,
Faculty of Science
P.O. Box 55 (A.I. Virtasen aukio 1)
FIN-00014 University of Helsinki
Tel. +358 9 191 50429, Mobile +358 (0)50 5279446
Fax +358 9 191 50366
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