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Python grouping program - GhostZero199 - Jul-18-2017
I try to make a program that sorts words into predifined groups. The thing is how do I make it show me the content that had been transfered to those groups? Thank You!
Update: I did this program but I want to make it with multiple posibilities. "if" statement returns nothing for print.
ConstantinEduard = ('blablabla')
print ("this is a test, input name")
last = input("Numele de familie")
first = input("Prenumele")
print (ConstantinEduard)
RE: Python grouping program - DeaD_EyE - Jul-18-2017
Your solution is here:
https://docs.python.org/3.6/library/functions.html#sorted
https://docs.python.org/3/library/itertools.html#itertools.groupby
import itertools
def bycase(word):
if word[0].isupper():
return 'uppercase'
else:
return 'lowercase'
def byfirstletter(word):
return word[0].lower()
words = ['foo', 'bar', 'Baz', 'baz', 'Bar']
# now sort bycase
words_sorted = sorted(words, key=bycase)
for key, group in itertools.groupby(words_sorted, bycase):
print('Key:', key)
for word in group:
print('Word:', word)
# now sort byfirstletter
words_sorted = sorted(words, key=byfirstletter)
for key, group in itertools.groupby(words_sorted, byfirstletter):
print('Key:', key)
for word in group:
print('Word:', word)The more interesting part is, when you have a list like a table.For example you have a table with cars and one row has the color.
Sorting by color example:
from itertools import groupby
from operator import itemgetter
#example data
##### col0, col1, col2
cars = [('BMW', '318i', 'blue'),
('BMW', '323i', 'blue'),
('BMW', '318i', 'black'),
('BMW', '323i', 'blue'),
('BMW', '323i', 'black'),
('BMW', '320i', 'silver'),
('BMW', '318i', 'silver'),
('BMW', '318i', 'black'),
('BMW', '323i', 'silver'),
('BMW', '320i', 'silver'),
('BMW', '323i', 'black'),
('BMW', '318i', 'blue'),
('BMW', '323i', 'blue'),
('BMW', '323i', 'blue'),
('BMW', '323i', 'blue')]
sorted_cars = sorted(cars, key=itemgetter(2)) # sort by color
for color, group in groupby(sorted_cars, itemgetter(2)): # group by color
print('Color:', color)
for manufacturer, model, color in group:
print(manufacturer, model, color)Hope it helps. Next time you should post example data.Ok, you edited you original post, my answer is useless in this topic.
RE: Python grouping program - sparkz_alot - Jul-18-2017
(Jul-18-2017, 06:26 AM)GhostZero199 Wrote: "if" statement returns nothing for print.
What 'if' statement?. You need to post your code (between code tags), output (between output tags) and any errors, in their entirety (between error tags).