What is the purpose of the colon before a block in Python?
What is the purpose of the colon before a block in Python?
syntax
Python print statement “Syntax Error: invalid syntax”
Why is Python giving me a syntax error at the simple print statement on line 9? import hashlib, sys m = hashlib.md5() hash = "" hash_file = raw_input("What is the file name in which the hash resides? ") wordlist = raw_input("What is your wordlist? (Enter the file name) ") try: hashdocument = open(hash_file,"r") except IOError: … Read more
Python – is there a “don’t care” symbol for tuple assignments?
Given a string “VAR=value” I want to split it (only) at the first ‘=’ sign (< value > may contain more ‘=’ signs), something like this:
Nested list comprehensions
I tried to use the value of an outer list comprehension in an inner one:
Getting a default value on index out of range in Python
a=['123','2',4] b=a[4] or 'sss' print b I want to get a default value when the list index is out of range (here: ‘sss’). How can I do this? Answers: Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat … Read more
Nested dictionary comprehension python
I’m having trouble understanding nested dictionary comprehensions in Python 3. The result I’m getting from the example below outputs the correct structure without error, but only includes one of the inner key: value pairs. I haven’t found an example of a nested dictionary comprehension like this; Googling “nested dictionary comprehension python” shows legacy examples, non-nested comprehensions, or answers solved using a different approach. I may be using the wrong syntax.
How to pass parameters to function in a bash script?
I’d like to write a function that I can call from a script with many different variables. For some reasons I’m having a lot of trouble doing this. Examples I’ve read always just use a global variable but that wouldn’t make my code much more readable as far as I can see.
Are if else statement equivalent to logical and && or || and where should I prefer one over the other?
I’m learning about decision making structures and I came across these codes:
Why does a brace command group need spaces after the opening brace in POSIX Shell Grammar?
TL;DR: Why does POSIX brace group need spaces after { reserved word but subshell doesn’t after reserved word (?