Python code works on JupyterNotebook (local) but not on Visual Studio Code (ssh) Question: So, I have a piece of code written in Python which works perfectly fine on my local Jupyter Notebook, BUT when I run the same piece of code on Visual Studio Code it doesn’t work. This is the code: for i …
Python worker failed to connect back Question: I’m trying to complete this Spark tutorial. After installing Spark on local machine (Win10 64, Python 3, Spark 2.4.0) and setting all env variables (HADOOP_HOME, SPARK_HOME, etc) I’m trying to run a simple WordCount.py Spark application: from pyspark import SparkContext, SparkConf if __name__ == "__main__": conf = SparkConf().setAppName("word …
PyCharm warns local variable might be referenced Question: Why does PyCharm highlight the boolean variable nearby the return with Local variable “boolean” might be referenced before assignment? This code checks whether a number is prime or not: import random import math import time def prime_t(x): print x if x < 2: return False if x …
When does my function will go to previous scopes to look for a variable? Question: in python 3.0 from what i know when i’m using variables that aren’t found in the local scope it will go all the way back until it reaches the global scope to look for that variable. I have this function: …
python dictionary passed as an input to a function acts like a global in that function rather than a local Question: I am very confused by the behaviour below. Cases 1, 3, and 4 perform as I would expect, but case 2 does not. Why does case 2 allow the function to change the value …
How to make a local variable (inside a function) global Question: I’m using functions so that my program won’t be a mess but I don’t know how to make a local variable into global. Asked By: user1396297 || Source Answers: Simply declare your variable outside any function: globalValue = 1 def f(x): print(globalValue + x) …
Is it possible to "dynamically" create local variables in Python? Question: Is it possible to create a local variables with Python code, given only the variable’s name (a string), so that subsequent calls to “‘xxx’ in locals()” will return True? Here’s a visual : >>> ‘iWantAVariableWithThisName’ in locals() False >>> junkVar = ‘iWantAVariableWithThisName’ >>> (…some …
Local functions in Python Question: In the following Python code, I get an UnboundLocalError. As I understand it, local functions share the local variables of the containing function, but this hardly seems to be the case here. I recognise that a is an immutable value in this context, but that should not be a problem. …
