Linked Questions

I know that some other languages, such as PHP, support a concept of "variable variable names" - that is, the contents of a string can be used as part of a variable name. I heard that this is ...

I'm just learning to program and am learning Python as my first language. As an exercise I'm trying to write an address book program. New contact are created by the user using the command prompt. ...

I'm looking for a way, in python 3.2, to create a large number of variables and assign them values. Something like X = 10 Y = 10 A = 0 B = 0 while X >= 0: while Y >= 0: cell[C]X[A] =...

I am trying to automate populating a town by randomly generating households. I generate the name of the town, generate the number of households, the last name of each household and number of occupants ...

I am trying to create variable for each iteration of the for loop: for i in range(10): x(i) = 'abc' so that I would get x1, x2, x3, x4, .... x10, all equal to 'abc' Anyone know how to do it? Thanks!...

My question is how to create variables "on the fly". I'm trying to generate an object with a random set of attributes. from random import randint, choice class Person(object): def ...

I'm trying to import datasets which have the following filenames (phone1, phone2, etc) df1 = pd.read_csv(r'C:\Users\...\phone1.csv') df2 = pd.read_csv(r'C:\Users\...\phone2.csv') df3 = pd.read_csv(r'C:...

I'm trying to put together a programming project at my university, but I'm stuck. The "math" part I've got covered, but I need help with lists and loops in Python. I'm working with graphs, let me ...

I have a function that I made to analyze experimental data (all individual .txt files) This function outputs a dictionary ({}) of Pandas Dataframes Is there a efficient way to iterate over this ...

I was just wondering if there was a way I could create variables from string like in the code below, I can create a file which includes the variable subject in the filename. filehandle = open('...

I am currently trying to write a simple program to calculate probabilities of possible combinations with dice of different sizes (e.g. : 6, 12, 4, 20). The problem i have is that it is supposed to be ...

I have a file that stores variable names and values like below: name,David age,16 score,91.2 ... I want to write a python script that reads the file and automatically creates variables in an object ...

I'm a little new to Python, and was hoping that someone might be able to help me with a problem I've got. I have the need to instantiate multiple objects using the variables in a list. Let's say I ...

Is it possible to create a variable name based on the value of a string? I have a script that will read a file for blocks of information and store them in a dictionary. Each block's dictionary will ...

I would like to write this: x = 'something_{}'.format(1) exec('{} = {}'.format(x,np.zeros((2,2)))) Problem: I get SyntaxError: invalid syntax and I don't know how to solve it. Someone has an idea?

I have a list files that I want to iterate over and import as dataframes: data_files = ['data1.csv', 'data2.csv', 'data3.csv'] I'm trying to iterate over the list and create eponymously name ...

I am trying to assign every letter in the given word 'cmpny' to an undefined variable(here, i am using counters as variable) var_counter = 0 user_input = 'cmpny' for usr in user_input: ...

I want to run a for loop with index i so that I can define (inside each loop) an ndarray with name A_i. More concretely, I want it to look something like for i in range(numer): A_i = M where M is ...

Here the number of variables (which correspond to numfactors) are assigned manually to each letter of the alphabet. So the first variable is A and it gets assigned the value of an array slice (paths[...

I have written some classes I would like to test by creating multiple instances of my classes. I would like those instances to have names following the pattern p1, p2, etc: p1 = Point(1,1) p2 = Point(...

I have a simple problem in python. I am trying to create a varible which uses the value of another variable in its name. A pertinent part of the code is: for m in range (1,4): if m ==1: ...

I have a class for which I want to create instances through a function, but I also want to be able to name the instances with the value of a Tkinter.Entry widget. The simplified version of that I am ...

Based on the code below, I am trying to create a for loop that has a variable in it but the variable name changes based on counter number. What should I do? I want the final product of this for loop ...

I want to change a variable using another variable without doing the boring old way of: if choice == 'tuna': tuna_num -= 1 Instead I wanted to do it in a just as quick way as the method seen below: ...

Before you say to use a dictionary, I want to change the value of the actual variable. This is what happens with the standard dict strategy: (Note that I'm not necessarily using a list, the value ...

I have a simple question: I have this code: # open an HTML file on my own (Windows) computer url = "$user data here" webbrowser.open(url,new=new) I need to have it so that when it is run the user ...

I have variables text1, text2, text3. I want to print them. for i in range(1, 4): text = 'text' + str(i) print(text) This code prints strings text1 text2 text3 , not the content of them.

I would like to convert each item of a list of strings into an empty list object with the string as list name. Input: list_items = ["string1","string2"] Output: 2 empty lists ...

I'm making a piece of code that asks users to input their name and three scores into a program. This will continue happening within a while loop until it is stopped (meaning there could be 2 users ...

Let's say I have multiple lists called level_1, level_2, level_3.. Now I want to loop through all of them, but want to use list 1 on idx 1, list 2 on idx 2, .. My solution would be something like this:...

I'm currently making a game for CompSci class, and I want to shorten our random monster fights. Is there a way to make it so when I call a def I can change the name depending on a random variable? ...

I have a function in which variables of 'node1', 'node2', 'node3' are referenced. I would like to make it so that the second time the function is called, 'node1' become 'node1_a' and on the third ...

I am having some problems retrieving data from a dictionary that is created in a for loop. In my code I have two dictionaries created and updated periodically, one from a machine database and one from ...

I would like to set the variable name in a for loop, like: for i in range(5): namei = i # this is a variable name It will give me: name0 = 0 name1 = 1 name2 = 2 name3 = 3 name4 = 4 does anyone ...

I've got an idea for a program that I'm not sure how to implement. How can I make the program ask the user something -- input() -- as many times as user responds until x command is written and (and ...

I'm having an absolute mind-block. This is my data: db_one = 1 db_two = 2 db_three = 3 db_four = 4 list_to_iterate = ['one','two','three','four'] for each_item in list_to_iterate: new_string = '...

this is my first post so I am sorry if I get any formatting wrong. I have searched this before in stackoverflow and it did come up with a few responses but I didn't really understand as I couldn't ...

I am using Python 2.5. In the code below want to print either err1, err2 or err3 depending on the value of x. Is it possible to create the variables err1, err2 or err3 by joining "err" plus the value ...

I want to create 6 pandas dataframes from 6 text files. I want to name them according to the names of the text files. The text files are named as 'DAPC_min.txt' and so on. I want the dataframe names ...

Python newbie here: I have a class ExampleState: ... My purpose is to create a class object unique to every user. I get the username from my client flutter app in django. So, instead of state = ...

I have a list of IDs I'm trying to manipulate in order to get long strings of the following format: "ID1,ID2,ID3,....,IDn". that is, a long string where the IDs are separated by commas, which are ...

I'm coding a text-based adventure game for my python project in school, and I'm currently creating a fight function. It involves a lot of dictionaries, hence why I need to refer to a variable from a ...

Sorry if the title is confusing but I couldn't think of a better way to word it. I'm making a game with a friendship system and this is essentially what I'm trying to do: playerChar = "Adam";...

Here is the code to start with. Ignoring all the CSV jazz if you want, the important part is the loop. import csv Teacher_Array = [] class Teacher: def __init__ (self, login, password, name, ...

if one had a list of strings, how could they create variables (empty list objects) with those names? pre_vars= ['list_1','list_2','list_3'] print list_1,list_2,list_3 >>> [],[],[] I saw ...

This is the original code: class stock(object): def __init__(self,ticker): self.ticker = ticker tickers = ['KO','JNJ','PFE','NKE','PG','WMT','MMM','IBM'] stocks = [] leng = len(tickers) for i in ...

I've used locals() function and created some variables. Now I need to fetch all the variables created into a list, how should I do? example: column_list=[x for x in range(100)] for i,j in enumerate(...

line0 = "hello" line1 = "stack" line2 = "overflow" linenum = 1 for x in range(3): linenum = "line%d"%(x) print(linenum) I would like to print hello ...

I'm creating a loop which looks a it like this players = int(input('How many players? ')) for i in range (0,players): name = input('What is your name? ') Then I want the next variable to be '...

I'm trying to create a lot of variables inside a loop. for i in range(10): globals()[f"variables{i}"] = i perfect, so now I have variables0 = 0, variables1 = 1, variables2 = 2, etc. But ...