3 Answers. The recommended way to use MySQL with Django is to install mysqlclient instead of mysql-connector-python. If you use mysql-connector-python, then you need to change the ENGINE to 'mysql.connector.django' in your DATABASES setting ( docs ). NameError: name 'XXX' is not defined. I have a function def viterbi (). One of the input variabless is sequence. Later on in the function I am calling sequence. However, by doing so, it returns: def viterbi (sequence, p_start=None, p_trans=None, p_stop=None, p_emiss=None): length = len (sequence) num_states = len (p_start) best_path ...Aug 24, 2020 · NameError: name is not defined. In python, nameerror name is not defined is raised when we try to use the variable or function name which is not valid. Example: value = ['Mango', 'Apple', 'Orange'] print(values) After writing the above code, Ones you will print “ values ” then the error will appear as a “ NameError: name ‘values’ is ... Example1 Example2 0 1 10 1 2 20 2 3 30 3 4 40 4 5 50. 2. Load data. Rather than defining and initializing the variable manually, you can load the data from a file ...Jan 3, 2023 · To solve the error, make sure you will need to make sure that you need to type the correct spelling in your code. In this case, you should replace Type (Capital T) with the type (Small t), and then run the code again., for more clarification please see the below example. Apr 2, 2021 · And also: "NameError: name 'price_buy' is not defined". The code is generating a list of random numbers. import numpy as np # This function generates a list of numbers under certain rules def num_var_list (): global number_list, number_exit, number_target number_list = [] number_target = number_exit num_max_robot = (number_target * 20) / 100 ... Jun 9, 2020 · 1 Answer. clear_message () belongs to MainPage class so when calling it inside that class, you need to use self. prefix. Also, you need to use self as a parameter when defining the method since it is a member of a class. def clear_message (self): #self here user_key.delete (0, 'END') psw_key.delete (0, 'END') Additionally, since clear_message ... The "NameError: name '__file__' is not defined'" occurs when we use the __file__ global variable in an interactive shell. To solve the error, create a Python script and run the script with the python script_name.py command instead. shell. Traceback (most recent call last): File "<stdin>", line 1, in <module> NameError: name '__file__' is not ...BPO 39513 Nosy @vsajip, @vstinner, @serhiy-storchaka, @tirkarthi Superseder bpo-26789: logging: Trying to log during Python finalization with NameError: name 'open' is not defined Note: these values reflect the state of the issue at the ...1 Answer. clear_message () belongs to MainPage class so when calling it inside that class, you need to use self. prefix. Also, you need to use self as a parameter when defining the method since it is a member of a class. def clear_message (self): #self here user_key.delete (0, 'END') psw_key.delete (0, 'END') Additionally, since clear_message ...NameError: name 'x_train' is not defined Did you mean x_data? Share. Improve this answer. Follow answered Jun 13, 2017 at 14:01. Shai Shai. 111k 38 38 ...Aug 30, 2021 · I though removing the SELF would have resolved the issue quicker and cleaner, although at this stage I dont really care if the SELF is there or not. In that case how would I define 1) "self._request" 2) def _request (self, method, uri, timeout=5, auth=True, params=None) – hdsouza. Sep 2, 2021 at 14:00. Add a comment. Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about Teams1 Answer. Sorted by: 1. You didn't define p1, well you defined it, but in a function, so it's a local variable, not global. # Don't define it in any command p1 = user ('imaad', 'd', 'd', 5, 5, 2, 2, 2, 2,2 ,2) @bot.command () async def test1 (ctx): await ctx.send (p1.name) Also I don't understand your inconsistency, in one command you're using ...Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about Teamsclass GameLogic (object): def __init__ (self): self._player = Player (7) class Player (object): def __init__ (self,move_count): self.move_count = move_count. This is not my original code. I simplified my original code to show my mistake. Part of my original code is down below. class GameLogic: def __init__ (self, dungeon_name="game1.txt ...Traceback (most recent call last): File "simple.py", line 4, in <module> class Simple (object): File "simple.py", line 9, in Simple for i in xrange (self.a): NameError: name 'self' is not defined. Python interprets the loop code in the execution scope of the class body. Whatever ends up in the namespace after executing the code in the class ...when the code is run the tkinter module displays a gui and when you click the submit button it is meant to save what was in the entry boxes and assign the data to variables then clear the entry boxes. this part calls the function when the button is clickedIn the above traceback, the exception was a NameError, which means that there is a reference to some name (variable, function, class) that hasn’t been defined. In this case, the name referenced is someon. The final line in this case has enough information to help you fix the problem.Aug 2, 2015 · 3 Answers. Sorted by: 1. The while loop currently will run forever because the case is always true, newTask == "y". In order to exit the loop newTask needs to be set to something other than "y" causing the case to become false, newTask = "n". On the other hand it appears that your program doesn't need to be within a newTask while loop at all ... You have imported the math module using a different name. How to fix the NameError: name 'math' is not defined? The math library in Python is a built-in module that provides various mathematical operations and functions. It includes functions for basic arithmetic operations, trigonometric functions, logarithmic functions, and more. I have a Python version 3.3.0 and I am not sure why it does not let me do long for b and m here... I tried to look up the answers on here and but nothing helped...thanks. NameError: global name 'long' is not defined power = long (b) % long (m) There's no more long. Let it go (BTW, int is the new long)Feb 2, 2023 · Traceback (most recent call last): File line 4, in <module> print__age(14) NameError: name 'print__age' is not defined This issue is similar to the previous example but applied to function. Although there is a “print age” function, the function name is print, underscore, and age; however, I used double underscore __ when I called the function. See full list on careerkarma.com When I type in number in Entry it says name (of Entry) is not defined. I'm very new at programing and this is an school project. In this project I'm trying to make value calculator. marka1=float (marka.get ())*1*3.79 NameError: name 'marka' is not defined. Code:3 Answers. Sorted by: 1. The while loop currently will run forever because the case is always true, newTask == "y". In order to exit the loop newTask needs to be set to something other than "y" causing the case to become false, newTask = "n". On the other hand it appears that your program doesn't need to be within a newTask while loop at all ...Oct 24, 2019 · The fix is easy: define the __file__ variable to the name of the py module you are testing. In the interpreter type: __file__ = 'modulename.py'. Then run the script again. This method has never caused an issue for me. Share. Feb 2, 2023 · if i use 'print' in fist cell, i can see the data from 'data_df'. the problem is when i wolf like use in another cell into jupyterlab. – Carlos. Feb 2 at 21:16. 1. 'NameError: name 'data_df ' is not defined'. Note the extra space after data_df in that message. Maybe you put an extra space in the cell with the code that plots the graphics? on Oct 27, 2017. shadiakiki1986 mentioned this issue on Oct 27, 2017. Safe-to-close issues #129. Closed. maxpumperla closed this as completed on Oct 27, 2017.Solution: NameError: Name ‘Spark’ is not Defined in PySpark. Since Spark 2.0 'spark' is a SparkSession object that is by default created upfront and available in Spark shell, PySpark shell, and in Databricks however, if you are writing a Spark/PySpark program in .py file, you need to explicitly create SparkSession object by using builder to resolve NameError: Name 'Spark' is not Defined.NameError: name '_mysql' is not defined after setting change to mysql 3 Django connect mysql problem, NameError: name '_mysql' is not definedIn Python 2.x input is basically doing eval (input ()). You can read up on eval here. Basically it tries to evaluate the given expression. Since numbers and strings are expressions themselves, it will try to run your h input as literally h instead of a str. Once again use raw_input () to avoid this in Python 2.x. Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about TeamsJul 27, 2020 · 13. So as a full answer: If you use the python package mysqlclient you still need to install the mysql client from Oracle/MySQL. This contains the C-library that the python package uses. To make things more confusing: the python package is in fact written in C for speed increases. To install this library on MacOS: 3 Answers. The recommended way to use MySQL with Django is to install mysqlclient instead of mysql-connector-python. If you use mysql-connector-python, then you need to change the ENGINE to 'mysql.connector.django' in your DATABASES setting ( docs ).To fix this error, you can either access pandas using the name that you have used in the import statement or import pandas without an alias. import pandas as pd. # create a dataframe. df = pd.DataFrame( {. 'Name': ['Jim', 'Pam', 'Dwight'], 'Age': [25, 26, 28] }) # display the dataframe. May 17, 2018 · NameError: name 'dtype' is not defined Here is the python code : # -*- coding: utf-8 -*- from __future__ import division import pandas as pd import numpy as np import ... You should use raw_input because you are using python-2.7. When you use input () on a variable (for example: s = input ('Name: ') ), it will execute the command ON the Python environment without saving what you wrote on the variable ( s) and create an error if what you wrote is not defined. 13. So as a full answer: If you use the python package mysqlclient you still need to install the mysql client from Oracle/MySQL. This contains the C-library that the python package uses. To make things more confusing: the python package is in fact written in C for speed increases. To install this library on MacOS:1,610 1 8 28. Add a comment. -1. S is not defined in the global scope, where you're trying to use it (Note that K, r, t, and sigma are also not defined in the global scope and will cause similar errors). Try either defining these variables in the global scope or moving any line that uses them into a function where they are defined.NameError: name 'XXX' is not defined. I have a function def viterbi (). One of the input variabless is sequence. Later on in the function I am calling sequence. However, by doing so, it returns: def viterbi (sequence, p_start=None, p_trans=None, p_stop=None, p_emiss=None): length = len (sequence) num_states = len (p_start) best_path ...NameError: name 'XXX' is not defined. I have a function def viterbi (). One of the input variabless is sequence. Later on in the function I am calling sequence. However, by doing so, it returns: def viterbi (sequence, p_start=None, p_trans=None, p_stop=None, p_emiss=None): length = len (sequence) num_states = len (p_start) best_path ... NameError: name 'XXX' is not defined. I have a function def viterbi (). One of the input variabless is sequence. Later on in the function I am calling sequence. However, by doing so, it returns: def viterbi (sequence, p_start=None, p_trans=None, p_stop=None, p_emiss=None): length = len (sequence) num_states = len (p_start) best_path ... Note that you never converted the file contents from a string to an integer, so stu may well be set to the '0' or '1' string. You probably want to convert the string to an integer: with open ("C:/Users/"+ user +"/setting.txt", 'r'): try: stu = int (f.read ()) except ValueError: stu = 0. I'd recommend putting a import pdb;pdb.set_trace () first in the InfraPy.py file to make sure you are in the right file, and step through the definition of InfraPy.py to see what is happening. If you don't get a breakpoint, you are importing another file than you think. You can also dir (InfraPy) after importing it, and check which file you are ...Have I written custom code (as opposed to using a stock example script provided in TensorFlow): Custom Code. OS Platform and Distribution (e.g., Linux Ubuntu 16.04): Google Colab (GPU) TensorFlow installed from (source or binary): pip install. TensorFlow version (use command below): 1.15.0. Python version: 3.6.I have a Python version 3.3.0 and I am not sure why it does not let me do long for b and m here... I tried to look up the answers on here and but nothing helped...thanks. NameError: global name 'long' is not defined power = long (b) % long (m) There's no more long. Let it go (BTW, int is the new long)The clue is in the error: NameError, on line 5 where you call pd.DataFrame, because there is no import statement, Python does not know what the "name" pd means. Share Improve this answerSep 21, 2022 · 1. Solution: stop copying random code from other places and wonder why it does not work. Instead write code yourself that you do understand. Having globals is very often a very bad idea, particularly if you do not know what you are doing and how to build a somewhat clean application. – luk2302. Sep 21, 2022 at 8:40. You have imported the math module using a different name. How to fix the NameError: name 'math' is not defined? The math library in Python is a built-in module that provides various mathematical operations and functions. It includes functions for basic arithmetic operations, trigonometric functions, logarithmic functions, and more.You should use raw_input because you are using python-2.7. When you use input () on a variable (for example: s = input ('Name: ') ), it will execute the command ON the Python environment without saving what you wrote on the variable ( s) and create an error if what you wrote is not defined. try: # Python 2 forward compatibility range = xrange except NameError: pass # Python 2 code transformed from range (...) -> list (range (...)) and # xrange (...) -> range (...). The latter is preferable for codebases that want to aim to be Python 3 compatible only in the long run, it is easier to then just use Python 3 syntax whenever possible ...NameError: name 'Tree' is not defined That's because the class has not been defined yet at this point. The workaround is using so called Forward Reference, i.e. wrapping a class name in a string, i.e. class Tree: def __init__(self, left: 'Tree', right: 'Tree'): self.left = left self.right = rightAnd also: "NameError: name 'price_buy' is not defined". The code is generating a list of random numbers. import numpy as np # This function generates a list of numbers under certain rules def num_var_list (): global number_list, number_exit, number_target number_list = [] number_target = number_exit num_max_robot = (number_target * 20) / 100 ...Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about TeamsNov 25, 2021 · NameError: name 'nn' is not defined. 4. Pytorch Error, RuntimeError: expected scalar type Long but found Double. 1. Pytorch - AttributeError: 'tuple' object has no ... The "NameError: name '__file__' is not defined'" occurs when we use the __file__ global variable in an interactive shell. To solve the error, create a Python script and run the script with the python script_name.py command instead. shell. Traceback (most recent call last): File "<stdin>", line 1, in <module> NameError: name '__file__' is not ...In Python 2.x input is basically doing eval (input ()). You can read up on eval here. Basically it tries to evaluate the given expression. Since numbers and strings are expressions themselves, it will try to run your h input as literally h instead of a str. Once again use raw_input () to avoid this in Python 2.x. Nov 25, 2021 · NameError: name 'nn' is not defined. 4. Pytorch Error, RuntimeError: expected scalar type Long but found Double. 1. Pytorch - AttributeError: 'tuple' object has no ... NameError: global name 'xrange' is not defined in Python 3. 370. Could not find a version that satisfies the requirement tensorflow. 185. NameError: global name ... You have imported the math module using a different name. How to fix the NameError: name 'math' is not defined? The math library in Python is a built-in module that provides various mathematical operations and functions. It includes functions for basic arithmetic operations, trigonometric functions, logarithmic functions, and more.Jun 7, 2009 · Reloading updates module variables, but does not remove old ones, so if you rename something the old name will still exist. If you change class definitions, existing objects will still have the old type. Aug 1, 2021 · "NameError: name 'token' is not defined. I am writing a token generator, (like a password generator) and I made a function called buy_tokens(token). Even after the function, it does not read the parameter that is passed in the buy_token function. To understand better, read the code: The Python "NameError: name 'plt' is not defined" occurs when we use the pyplot module without importing it first. To solve the error, install matplotlib and import plt (import matplotlib.pyplot as plt) before using it. Open your terminal in your project's root directory and install the matplotlib module. shell.3 Answers. The recommended way to use MySQL with Django is to install mysqlclient instead of mysql-connector-python. If you use mysql-connector-python, then you need to change the ENGINE to 'mysql.connector.django' in your DATABASES setting ( docs ).Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about Teamstry: # Python 2 forward compatibility range = xrange except NameError: pass # Python 2 code transformed from range (...) -> list (range (...)) and # xrange (...) -> range (...). The latter is preferable for codebases that want to aim to be Python 3 compatible only in the long run, it is easier to then just use Python 3 syntax whenever possible ...Feb 15, 2019 · The clue is in the error: NameError, on line 5 where you call pd.DataFrame, because there is no import statement, Python does not know what the "name" pd means. Share Improve this answer 0. You should insert a cell just before your present code cell and then type the following code. from sklearn.base import BaseEstimator, TransformerMixin. class DataFrameSelector (BaseEstimator, TransformerMixin): def __init__ (self, attribute_names): self.attribute_names = attribute_names def fit (self, X, y=None): return self def transform ... Feb 15, 2019 · The clue is in the error: NameError, on line 5 where you call pd.DataFrame, because there is no import statement, Python does not know what the "name" pd means. Share Improve this answer Feb 11, 2013 · NameError: name 'Tree' is not defined That's because the class has not been defined yet at this point. The workaround is using so called Forward Reference, i.e. wrapping a class name in a string, i.e. class Tree: def __init__(self, left: 'Tree', right: 'Tree'): self.left = left self.right = right Jan 8, 2019 · 1. global bgcolor does not define, declare, or otherwise create a variable. It simply states that a global variable by that name, not a local variable, should be used. You still need to ensure it is defined before your first use in DISPLAYSURF.fill (bgcolor). Specifically, you need to assign a value to the variable before the first time you ... 3 Answers. The recommended way to use MySQL with Django is to install mysqlclient instead of mysql-connector-python. If you use mysql-connector-python, then you need to change the ENGINE to 'mysql.connector.django' in your DATABASES setting ( docs ). 1,610 1 8 28. Add a comment. -1. S is not defined in the global scope, where you're trying to use it (Note that K, r, t, and sigma are also not defined in the global scope and will cause similar errors). Try either defining these variables in the global scope or moving any line that uses them into a function where they are defined.The Python "NameError: name 'plt' is not defined" occurs when we use the pyplot module without importing it first. To solve the error, install matplotlib and import plt (import matplotlib.pyplot as plt) before using it. Open your terminal in your project's root directory and install the matplotlib module. shell.Oct 15, 2020 · Our code returns [0, 1, 2], which is all the numbers in the range of 0 and 3 (exclusive of 3). The xrange() function returns a list of numbers.. Python 3 removed the xrange() function in favor of a new function called range(). You should use raw_input because you are using python-2.7. When you use input () on a variable (for example: s = input ('Name: ') ), it will execute the command ON the Python environment without saving what you wrote on the variable ( s) and create an error if what you wrote is not defined. However, you can remove the unicode () call altogether; open () produces a file object that already decodes data to Unicode for you. You probably want to tell it what codec to use, explicitly: fileMain = open ("dictionary_15k.txt", "r", encoding="utf-8") for line1 in fileMain: dictWords.append (line1.strip ()) You may want to switch to Python 2 ...NameError: name 'db' is not defined. Ask Question Asked 3 years, 3 months ago. Modified 3 years, 3 months ago. Viewed 3k times 0 I've made a simple code using python ...Jan 3, 2023 · To solve the error, make sure you will need to make sure that you need to type the correct spelling in your code. In this case, you should replace Type (Capital T) with the type (Small t), and then run the code again., for more clarification please see the below example. Jan 8, 2019 · 1. global bgcolor does not define, declare, or otherwise create a variable. It simply states that a global variable by that name, not a local variable, should be used. You still need to ensure it is defined before your first use in DISPLAYSURF.fill (bgcolor). Specifically, you need to assign a value to the variable before the first time you ... Jan 7, 2014 · Traceback (most recent call last): File "simple.py", line 4, in <module> class Simple (object): File "simple.py", line 9, in Simple for i in xrange (self.a): NameError: name 'self' is not defined. Python interprets the loop code in the execution scope of the class body. Whatever ends up in the namespace after executing the code in the class ... I have a Python version 3.3.0 and I am not sure why it does not let me do long for b and m here... I tried to look up the answers on here and but nothing helped...thanks. NameError: global name 'long' is not defined power = long (b) % long (m) There's no more long. Let it go (BTW, int is the new long)Jun 27, 2022 · addTWoNumbers() # NameError: name 'addTWoNumbers' is not defined In the code above, we called a function – addTWoNumbers() – that was yet to be defined in the program. To fix this, you can create the function if you need it or just get rid of the function if it is irrelevant. What is a NameError? A NameError is raised when you try to use a variable or a function name that is not valid. In Python, code runs from top to bottom. This means that you cannot declare a variable after you try to use it in your code. Python would not know what you wanted the variable to do. The most common NameError looks like this:As in your code, you wrote history.history ['categorical_accuracy'], which gives me the idea that you must use history = model. fit (...). The .fit () method must return training logs stuff, so this history variable should possess them. One of the silly reasons is, after training, one probably shut down the notebook and later reload the model ...Apr 14, 2022 · 1. First thing first: always try to avoid using the global keyword. It causes instability i code as it gets longer and complex. Anyways, your code says global is not defined because you don't have the global variable named browser defined outside of the function scopes. Remove the global keyword. 3 Answers. Because model has not been defined before using it in the line classes = model.predict (images, batch_size=10). First define a model and then use it, for eg; from sklearn.linear_model import LinearRegression x = 30 * np.random.random ( (20, 1)) y = 0.5 * x + 1.0 + np.random.normal (size=x.shape) model = LinearRegression () model.fit ...
However, you can remove the unicode () call altogether; open () produces a file object that already decodes data to Unicode for you. You probably want to tell it what codec to use, explicitly: fileMain = open ("dictionary_15k.txt", "r", encoding="utf-8") for line1 in fileMain: dictWords.append (line1.strip ()) You may want to switch to Python 2 .... Pvc wall panels bandq
Jun 7, 2009 · Reloading updates module variables, but does not remove old ones, so if you rename something the old name will still exist. If you change class definitions, existing objects will still have the old type. Dec 6, 2016 · Firstly, maybe your df object is not global variable. If so, you may pass df as an argument to the function. For the syntax, your access to the index should be .index [0] rather than .index (0). A more compact solution is return str (df ['Gold'].idxmax ()). @jezrael Thanks for suggestion. Aug 30, 2021 · I though removing the SELF would have resolved the issue quicker and cleaner, although at this stage I dont really care if the SELF is there or not. In that case how would I define 1) "self._request" 2) def _request (self, method, uri, timeout=5, auth=True, params=None) – hdsouza. Sep 2, 2021 at 14:00. Add a comment. 1. Since you installed using pip install nltk, it must have likely installed the latest published version of the code. Seems like there is a bug in the code there, as can be seen in the latest version (3.7) source code here. The issue in version 3.7 is that on line 1680, the function lemma_from_key is being called, but it does not exist.Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about TeamsTrack = models.get_model (app_name, model_name) else: class Track (AudioTrack): pass class Genre_Track (models.Model): #links genre to tracks audio_track = models.ForeignKey (AudioTrack) genre = models.ForeignKey (Genre) Where is the line throwing this error? Do you have a function named _ defined in that context?To fix this error, you can either access pandas using the name that you have used in the import statement or import pandas without an alias. import pandas as pd. # create a dataframe. df = pd.DataFrame( {. 'Name': ['Jim', 'Pam', 'Dwight'], 'Age': [25, 26, 28] }) # display the dataframe. Jan 8, 2019 · 1. global bgcolor does not define, declare, or otherwise create a variable. It simply states that a global variable by that name, not a local variable, should be used. You still need to ensure it is defined before your first use in DISPLAYSURF.fill (bgcolor). Specifically, you need to assign a value to the variable before the first time you ... In Python 2.x input is basically doing eval (input ()). You can read up on eval here. Basically it tries to evaluate the given expression. Since numbers and strings are expressions themselves, it will try to run your h input as literally h instead of a str. Once again use raw_input () to avoid this in Python 2.x. 今回はPythonのNameErrorについて解説します。 1. NameErrorとは 2. NameErrorの対応方法 3. まとめ 関連記事 1. NameErrorとは NameErrorはPythonの組み込み例外の1つで、「名前が見つからなかった」というエラーです。 このエラーは、変数や関数などを参照した…And also: "NameError: name 'price_buy' is not defined". The code is generating a list of random numbers. import numpy as np # This function generates a list of numbers under certain rules def num_var_list (): global number_list, number_exit, number_target number_list = [] number_target = number_exit num_max_robot = (number_target * 20) / 100 ...class GameLogic (object): def __init__ (self): self._player = Player (7) class Player (object): def __init__ (self,move_count): self.move_count = move_count. This is not my original code. I simplified my original code to show my mistake. Part of my original code is down below. class GameLogic: def __init__ (self, dungeon_name="game1.txt ...However, you can remove the unicode () call altogether; open () produces a file object that already decodes data to Unicode for you. You probably want to tell it what codec to use, explicitly: fileMain = open ("dictionary_15k.txt", "r", encoding="utf-8") for line1 in fileMain: dictWords.append (line1.strip ()) You may want to switch to Python 2 ...NameError: name 'Tree' is not defined That's because the class has not been defined yet at this point. The workaround is using so called Forward Reference, i.e. wrapping a class name in a string, i.e. class Tree: def __init__(self, left: 'Tree', right: 'Tree'): self.left = left self.right = rightTraceback (most recent call last): File line 4, in <module> print__age(14) NameError: name 'print__age' is not defined This issue is similar to the previous example but applied to function. Although there is a “print age” function, the function name is print, underscore, and age; however, I used double underscore __ when I called the function.A NameError is raised when you try to use a variable or a function name that is not valid. In Python, code runs from top to bottom. This means that you cannot declare a variable after you try to use it in your code.Feb 1, 2023 · To solve the error, we have to import the random module. main.py. # import random module first import random n1 = random.randint(1, 10) print(n1) s1 = random.choice(['a', 'b', 'c']) print(s1) Even though the random module is in the Python standard library, we still have to import it before using it. Make sure you haven't used a capital letter r ... .