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14,385

Nov-02-2018, 10:52 PM

Thread: Caesar Cypher--- I don't understand why it doesn't work
Post: RE: Caesar Cypher--- I don't understand why it doe...

(Nov-02-2018, 09:42 PM)ironsheep Wrote: You understood what I was trying to do, how come computers can't?? You told us more or less, what you're trying to do, but you have to explain it to the compu...

5,864

Nov-02-2018, 10:15 PM

Thread: Python arrays
Post: RE: Python arrays

It seems that your data2 is not a list of strings but a nested list. # a list: data2 = ['1','2','3','4'] # a nested list: data2 = [['1','2'],['3','4']]

3,138

Oct-31-2018, 12:51 AM

Thread: Return giving incorrect value
Post: RE: Return giving incorrect value

(Oct-24-2018, 09:17 PM)nilamo Wrote: We must have different opinions on the definition of very. I thought it was better to count a non-int as an invalid entry then to let the program crash.

3,335

Oct-24-2018, 09:53 PM

Thread: Return giving incorrect value
Post: RE: Return giving incorrect value

(Oct-18-2018, 05:30 PM)Larz60+ Wrote: new get_miles function (replaces miles to kms) def get_miles(): attempts = 0.0 attempts += 1 miles = -1 # initialize miles while True: ...

3,335

Oct-24-2018, 09:16 PM

Thread: making a dictionary from a list, one key with multiple values in a list within a list
Post: RE: making a dictionary from a list, one key with ...

If you're using Python 2.7 or higher, PEP 274 -- Dict Comprehensions may help you. lst = [['Helloworld', 'W', 'R'], ['pinglog', 'W'], ['data', 'X', 'W', 'R']] my_dict = {item[0] : item[1:] for item i...

3,571

Oct-24-2018, 06:40 PM

Thread: finding 2 max values in an array in python
Post: RE: finding 2 max values in an array in python

(Oct-17-2018, 09:17 PM)nilamo Wrote: Ok, but because you use .index(), it's slower the more results you want (I believe O(n) is what it'd be called). For example, if you change it to be 1) an unsort...

184,039

Oct-17-2018, 09:43 PM

Thread: finding 2 max values in an array in python
Post: RE: finding 2 max values in an array in python

I've tried this: from operator import itemgetter def n_max(seq, n=2): max_items = sorted(enumerate(seq), key=lambda x: x[1])[-1 * n:] return max_items[::-1] def my_max(seq, n=2): max_va...

184,039

Oct-17-2018, 08:56 PM

Thread: finding 2 max values in an array in python
Post: RE: finding 2 max values in an array in python

Assuming your array has only unique values: max_values = sorted(your_array, reverse=True)[:2] indices = [your_array.index(value) for value in max_values]