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Python Nested Loop Working Weirdly


Python Nested Loop Working Weirdly

By : user2955806
Date : November 22 2020, 10:48 AM
I hope this helps you . I think you intend to use k for control of while loop. Change to this:
code :
# you can give k or i a default value here as you like
k = 0
i = 0
while k <= 5:
    for num in range(1, 10):
        print "test"
        i +=1
    k+=1


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nested for loop in python not working

nested for loop in python not working


By : kr_June
Date : March 29 2020, 07:55 AM
wish helps you Once you have consumed the file, it has been consumed. Thus iterating over it again won't produce anything.
code :
>>> for row in input_file:
...     print row
1,2,3,...
4,5,6,...
etc.
>>> for row in input_file:
...     print row
>>> # Nothing gets printed, the file is consumed
maxima = [float('-inf')] * 13
minima = [float('inf')] * 13
with open('names.csv') as input_file:
    for row in input_file:
        for col, value in row.split(','):
            value = float(value)
            maxima[col] = max(maxima[col], value)
            minima[col] = min(minima[col], value)

# This gets the value you called ``l``
combined_max_and_min = zip(maxima, minima)
Python 3.4 nested loop using lambda filter working weirdly

Python 3.4 nested loop using lambda filter working weirdly


By : user3552412
Date : March 29 2020, 07:55 AM
wish helps you You are using Python 3, and the recipe was written for Python 2. In Python 2, filter returns a list, which obviously can be iterated over many times with for (the inner for dt2 in hp).
However in Python 3, hp will be a one-pass iterator; now, the outer for would consume the first element, and the inner for would consume all the remaining elements; when the inner loop exits, the outer loop finds an empty iterator and exits too.
code :
[item for item in iterable if function(item)]
(item for item in iterable if function(item))
hp = list(filter(lambda x: x[0] > cutoff, depth_tuples))
How to convert a for loop into a nested while loop w/ a working if statement in Python

How to convert a for loop into a nested while loop w/ a working if statement in Python


By : Omid
Date : March 29 2020, 07:55 AM
This might help you I'm struggling at the moment in finding a way to convert my for loops to a good working set of while loops with a working if statement to create a multiplication table that looks like this: , I don't know your purpose but can do something like below
code :
print('x', end='\t')
row = 1
while (row < 13):
    print(row, end='\t')
    row += 1
row = 1    
while (row < 13):
    print('')
    print()
    print()
    print(row, end='\t')
    col = 1
    while( col < 13):
        print(row*col, end='\t')
        col += 1
    row += 1
Python: Why for loop is behaving weirdly?

Python: Why for loop is behaving weirdly?


By : user3311620
Date : March 29 2020, 07:55 AM
should help you out
I was confused to see that when I decrease the value i by 1, for example from 3 to 2, on the next iteration it goes back to 4. I have no idea why?
code :
i = 0
while i < len1:
   # ... loop body goes here ...
   i += 1
Lists weirdly modifies itself in a nested loop

Lists weirdly modifies itself in a nested loop


By : user3690533
Date : March 29 2020, 07:55 AM
Hope this helps The problem happens in the nested loop. In the first iteration everything is fine. The 2nd iteration over i, modifies the first list too and so on. Zeros across the 2d list should be diagonal , The problem is in the line
code :
zeros = [[0]*len(list)]*len(list)
zeros = [[0 for lv in range(len(list))] for lv in range(len(list))]
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