Nameerror name - Python NameError: name '' is not defined (though it sure seems like it is) Load 4 more related questions Show fewer related questions Sorted by: Reset to ...

 
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. B and f auto and body repair and auto sales

I try to compile this code but I get this errror : 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 re import missingno as msno from functools import partial import seaborn as sns sns.set (color_codes=True) if dtype (data.OPP ...Exercise: Define variable some_variable before you use it and fix the bug!. Note: All the explanations and solutions provided below have been verified using Python 3.8.5. ...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 ... Using this code in my website update tool, I receive a NameError: name 'new_link1' is not defined. However I use the name new_link in my code, not new_link1. I am using Jupyter notebooks with some other notebooks running similar code if that might be having an effect. My code is below.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 ...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 ... 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: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?I try to compile this code but I get this errror : 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 re import missingno as msno from functools import partial import seaborn as sns sns.set (color_codes=True) if dtype (data.OPP ...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 ... 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: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().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 ... 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 ...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?NameError: name ‘screen’ is not defined. Did you mean: ‘Screen’? 21st January 2023; ImportError: cannot import name ‘screen’ from ‘turtle’ 21st January 2023; ModuleNotFoundError: No module named ‘Turtle’ 21st January 2023; Python Quiz Code Sachin Vs Virat 2023 21st January 2023; NameError: name ‘Self’ is not defined.1 import logging as lg. 3 # log a warning message "Watch out!" ----> 4 logging.warning ('Watch out!') NameError: name 'logging' is not defined. We get a NameError: name 'logging' is not defined. This is because we have imported the logging module with the name lg but we’re trying to use it using the name logging.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 ...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 clickedApr 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. 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 ...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.9 hours ago · Python NameError: name '' is not defined (though it sure seems like it is) Load 4 more related questions Show fewer related questions Sorted by: Reset to ... Actually, I found the solution to this. If we use the import from __future__ import annotations it will read the file and it won't have that problem, so we can reference different things in the order that we want.1 import logging as lg. 3 # log a warning message "Watch out!" ----> 4 logging.warning ('Watch out!') NameError: name 'logging' is not defined. We get a NameError: name 'logging' is not defined. This is because we have imported the logging module with the name lg but we’re trying to use it using the name logging.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 ... 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 ... Oct 21, 2012 · Track = 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? # NameError: name 'X' is not defined in Python. The Python "NameError: name is not defined" occurs when we try to access a variable or a function that is not defined or before it is defined. To solve the error, make sure you haven't misspelled the variable's name and access it after it has been declared.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 ...1 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 ...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().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 ... 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.Oct 21, 2012 · Track = 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? Jun 6, 2021 · Add a comment. 1. Chepner is correct. You have to call calculate_ticket_price in your init function. The proper syntax is using the super keyword. Example: class Customer (TicketMixin): """ Create instance of Customer """ def __init__ (self, name, age,): self.name = name self.age = age self.price = super ().calculate_ticket_price (self.age) def ... 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 ... 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 I try to compile this code but I get this errror : 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 re import missingno as msno from functools import partial import seaborn as sns sns.set (color_codes=True) if dtype (data.OPP ...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.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 = rightI 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)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 ...Python NameError: name '' is not defined (though it sure seems like it is) Load 4 more related questions Show fewer related questions Sorted by: Reset to ...Jun 13, 2017 · Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about Teams Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about TeamsReloading 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."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: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. NameError: name 'nn' is not defined. 4. Pytorch Error, RuntimeError: expected scalar type Long but found Double. 1. Pytorch - AttributeError: 'tuple' object has no ...Jan 11, 2023 · NameError: name ‘screen’ is not defined. Did you mean: ‘Screen’? 21st January 2023; ImportError: cannot import name ‘screen’ from ‘turtle’ 21st January 2023; ModuleNotFoundError: No module named ‘Turtle’ 21st January 2023; Python Quiz Code Sachin Vs Virat 2023 21st January 2023; NameError: name ‘Self’ is not defined. 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 is a kind of error in Python that occurs when executing a function, variable, library, or string without quotes that have been typed in the code without any previous Declaration. When the interpreter, upon execution, cannot identify the global or local name throws a NameError.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 ...Jun 30, 2022 · NameError: name '_mysql' is not defined after setting change to mysql 3 Django connect mysql problem, NameError: name '_mysql' is not defined 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.In 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.The above code defines a function named “name” using the keyword “def”. This function is accessed and returns the value “5” successfully. But when we tried to access a sample() function, we encountered the “NameError”, which shows that the “name ‘sample’ is not defined”. This is because this function does not exist in ...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? 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 ... 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 ... 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. Python NameError: name '' is not defined (though it sure seems like it is) Load 4 more related questions Show fewer related questions Sorted by: Reset to ...I try to compile this code but I get this errror : 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 re import missingno as msno from functools import partial import seaborn as sns sns.set (color_codes=True) if dtype (data.OPP ...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 ). The resulting error was this: NameError: name 'math' is not defined. This happened because the interpreter did not recognize the math keyword. Along with other math methods in Python, we must first import the math module to use it. Here's a fix: import math x = 5.5 print(math.ceil(x)) # 6.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.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 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 ... 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.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 '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: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 Jan 26, 2020 · 1. It has has to do with how you imported the json module. By using the * notation, you are importing everything in the json module. When importing a module in this way, you do not need to specify the module a function came from. When importing, you have two options, import the module (and reference the module name when using it), or import ... 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. 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. Feb 16, 2023 · You file execute.py permits someone to exec() arbitrary code (here be dragons). In this case, the code includes an alias tk that is unknow in the context of execute.py.. Either execute.py needs to import and set this alias or the text file contents of self.input needs to do that. Let’s now look at the above scenarios in detail. The scipy module is not imported. It can happen that you are trying to use the scipy module without even importing it. This is because Python does not recognize the scipy library and its functions until it is imported into the code. 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.In your case, instead of returning 'edit', it is trying to evaluate the variable name edit, which you have not defined. To solve this, make sure to run your script with Python 3: $ python3 my_script.py. Or, on the off chance that you actually want to use Python 2; raw_input () provides the same functionality as input () does in Python 3.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 ... 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(). 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 ... Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about Teams running it from an empty dir makes it go passed this issue. i.e. try the following. mkdir empty_dir && cd empty_dir && python -c 'import torch'. source: answer. Also, I just wan to put it out there that the root cause of this issue for me when importing torch was a broken numpy installation.Mar 7, 2016 · First of all, try creating a minimal reproducible example by isolating parts of your code until you isolate the exact lines/modules/packages creating the problem. The Stacktrace already helps, because now we know that it is a problem when calling the pydot.graph_from_dot_data method. 1 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 ...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 ...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 ... 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 ... @Mark_Hanslip Glad you’re trying the native API! The full import paths are torch.cuda.amp.autocast and torch.cuda.amp.GradScaler.Often, for brevity, usage snippets don’t show full import paths, silently assuming the names were imported earlier and that you skimmed the class or function declaration/header to obtain each path.

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 .... 314 500 6768

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29 6. regc should be a function that is known to the script (maybe defined somewhere else or imported) – user2314737. Sep 5, 2020 at 9:20. You said command=regc and now python is looking for a function named regc to execute when the button is clicked, but no such button exists, so how will it work, you have to start by def regc (): in the ...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 ...1 import logging as lg. 3 # log a warning message "Watch out!" ----> 4 logging.warning ('Watch out!') NameError: name 'logging' is not defined. We get a NameError: name 'logging' is not defined. This is because we have imported the logging module with the name lg but we’re trying to use it using the name logging.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 ).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 clickedNov 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 ... 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 Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about TeamsFeb 23, 2023 · In practice, you could use any other name, e.g. this. However, this is not recommended as the convention is followed by most (if not all) Python developers and not following it would make your code more confusing and more difficult to read. # Conclusion. To solve the "NameError: name 'self' is not defined", make sure: 2. TLDR; use this command=app.destroy instead of this command=quito. quit is not defined occurs because the function quito doesn't have access to such variable named quit hence not defined . Assign the command at the quit button to point to app.destroy like so - command=app.destroy that supposed to work because you provide an instance of the ...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.Python NameError: name '' is not defined (though it sure seems like it is) Load 4 more related questions Show fewer related questions Sorted by: Reset to ...Feb 1, 2023 · 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. The above code defines a function named “name” using the keyword “def”. This function is accessed and returns the value “5” successfully. But when we tried to access a sample() function, we encountered the “NameError”, which shows that the “name ‘sample’ is not defined”. This is because this function does not exist in ...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. 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..

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