All Questions
13 questions
3
votes
4
answers
399
views
Reducing cyclomatic complexity of a state machine
I have a function (written in Python) that processes a loosely structured log file.
The log file would have begin-end markers for different sections, with each section describing different things (e.g....
-6
votes
1
answer
396
views
While loop definition in python
My question is about a use of while loops that seems very abstract to me. I understand a while loop like the first one (one which has a clearly defined statement):
num = 1
while num<1:
...
-1
votes
1
answer
420
views
How to read user input and at the same time execute periodic commands
How would I go about prompting user-input, while at the same time running timers, to periodically execute automatic functions.
Pseudo-code to illustrate:
while true
{
if input() OR timer(10)
...
2
votes
2
answers
3k
views
Efficiency considerations: nested loop vs recursion
I would consider myself an intermediate Python programmer. One of my recent challenges was creating a list of all possible solutions to a given
Countdown problem.
Without getting into too much detail,...
- 23
1
vote
2
answers
116
views
Factored out loop control in Python
I have a for loop in python like this:
for item in items:
onwards = make_flow_decision(item)
if onwards == 'break':
break
elif onwards == 'continue':
continue
elif ...
- 131
2
votes
1
answer
608
views
Break big method into 2 methods, first containing a "for" loop and second a "break"
A method grew too big for its own good, and I need to break it up into two separate methods.
def big_method(dct):
# Initial code
# ...
for i in dct:
# More code
# ...
...
- 479
1
vote
1
answer
3k
views
adding the digits of a number
I am trying to write a program that asks the user for a decimal number and then calculates the sum of its digits. for example if the number is 123.25 then the sum will be 1+2+3+2+5=13.
I decided to ...
- 13
1
vote
3
answers
140
views
Using higher order functions to apply m out of M filter's and then transform data of size n?
Total no: of filters possible is M . User can select m filters where m <= M . A typical example is files from a folder , he could say modified between so and so date , start with so and so and so ...
- 585
85
votes
3
answers
43k
views
How do I move away from the “for-loop” school of thought?
This is a rather conceptual question, but I was hoping I could get some good advice on this. A lot of the programming I do is with (NumPy) arrays; I often have to match items in two or more arrays ...
- 1,701
0
votes
1
answer
788
views
Python case statement? [duplicate]
I made a simple Python script that takes user input in order to generate a series of mathematical responses. In one part I did this:
while True:
And iterated through the loop until I used an if ...
- 103
3
votes
1
answer
646
views
Will loop constructs become obsolete? [closed]
By loop constructs I mean for… and while… constructs with nested statements.
Currently I am coding a tool in Python and decided out of curiosity not to use the regular loops - and rely on filter/map/...
- 646
0
votes
1
answer
104
views
Code execution within delimiters [closed]
Is there any way I can execute a block of code in a loop, like so:
[ some code goes here ]
Where the delimiters are "[" and "]", and also allowing for nested blocks, i.e.:
[the user can create ...
- 111
7
votes
2
answers
14k
views
Loop Invariants in Python
I have a bit of experience with loop invariants but I'm not really clear on them. I'm trying to learn them through an example in Python. Can someone point one out or help me understand?
I've ...
- 269