Create variable names in loop python
WebDec 16, 2011 · names = dict ( ("v" + str (i), i**2) for i in range (3)) print names ["v2"] # 4 And, for a fixed finite (and relatively small) set of variables, "unpacking" can also be used: v0, v1, v2 = [i**2 for i in range (3)] print v1 # 1 Share Improve this answer Follow edited Dec 16, 2011 at 7:22 answered Dec 16, 2011 at 7:00 user166390 Add a comment 4 WebJun 24, 2013 · I want to implement a loop where in each iteration I name the variable according to iterator value. For instance-for i in range(1,10): r = # some value Is there a way i can do it, other than making all these variables as string keys in a dictionary as mentioned in How do you create different variable names while in a loop? (Python ...
Create variable names in loop python
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WebJun 4, 2015 · Dynamically creating names in a Python namespace is almost invariably a bad idea. It would be much more sensible to use a dict d and write d [c] = pd.DataFrame (). Read this answer, for example, to start to understand why it's a bad idea. – holdenweb Jun 4, 2015 at 8:19 Show 1 more comment 6 Adding to the above great answers. WebSep 18, 2024 · Unless there is an overwhelming need to create a mess of variable names, I would just use a dictionary, where you can dynamically create the key names and associate a value to each. a = {} k = 0 while k < 10: # dynamically create key key = ... # calculate value value = ... a [key] = value k += 1
WebSo lets run through the loop together: Line 1: Python prints “Output:”. Line 2: So the first execution Python creates a generator that counts from 0 to 10. Python assigns the … WebDec 9, 2013 · I want this variable to have a unique name for each iteration of the loop( based on reclassInt items). Ideally this could create variables like line1, line2, ect to equal the string outputs from each iteration. Then I could string these together outside the loop to get my desired string. To be clear my end goal is this exact string:
WebThe problem is I want each review category to have its own variable, like a dataframe called "beauty_reviews", and another called "pet_reviews", containing the data read from reviews_beauty.json and reviews_pet.json respectively. WebIs there a way I can generate variable names in python in a loop and assign values to them? For example, if I have prices = [5, 12, 45] I want price1 = 5 price2 = 12 price3 = 45 Can I do this in a loop or something instead of manually assigning price1 = prices [0], price2 = prices [1] etc. Thank you. EDIT
WebYou can use variable key names to achieve the effect of variable variables without the security risk. >>> x = "spam" >>> z = {x: "eggs"} >>> z ["spam"] 'eggs' For cases where you're thinking of doing something like var1 = 'foo' var2 = 'bar' var3 = 'baz' ... a list may be more appropriate than a dict.
WebPYTHON : How do you create different variable names while in a loop?To Access My Live Chat Page, On Google, Search for "hows tech developer connect"Here's a ... optissimo worbWebHow to create new variables with names from list? This: name = ['mike', 'john', 'steve'] age = [20, 32, 19] index = 0 for e in name: name [index] = age [index] index = index+1 of … optisperse chemicalWebDec 16, 2024 · Python create variable according to for loop index - Stack Overflow Python create variable according to for loop index [duplicate] Ask Question Asked 5 years, 3 months ago Modified 5 years, 3 months ago Viewed 16k times -1 This question already has answers here: How can you dynamically create variables? [duplicate] (8 answers) optisport alexanderhof reserverenWebApr 4, 2024 · This tutorial will discuss different methods to create a dynamic variable name in Python. Use the for Loop to Create a Dynamic Variable Name in Python. The creation of a dynamic variable name in Python can be achieved with the help of iteration. Along with the for loop, the globals() function will also be used in this method. The globals ... optispire advance incWebJun 19, 2024 · create a List of data_frames as df = [] Now append your data_frames as for i in range (7): df.append (pd.read_csv (r'C:\Users\siddhn\Desktop\phone'+str (i)+'.csv', engine = 'python') You can then acess data_frames by indexing them like df [0] or df [1] ..... Share Improve this answer Follow answered Jun 19, 2024 at 5:02 pendela neelesh 13 6 portofino homes for sale with elevatorWebCreating a dictionary as it has mentioned, but in this case each key has the name of the object name that you want to create. Then the value is set as the class you want to instantiate, see for example: class MyClass: def __init__(self, name): self.name = name self.checkme = 'awesome {}'.format(self.name) ... optispiceWebNov 18, 2012 · I'm trying to create several arrays in a loop and have access to them further on. I don't understand why I can modify and print them within the loop but outside it says the variable doesn't exist. for i in range (0,3): a_i=[i] a_i.append(i+1) print a_i print a_1 portofino horsepower