当你遇到 NameError: name 'df' is not defined 这样的错误时,通常意味着在你的代码中尝试使用一个名为 df 的变量,但是在使用它之前并没有正确定义它。以下是一些解决这个问题的步骤: 确认'df'是否应该被定义: 首先,你需要确认 df 是否是你代码中必需的变量。如果 df 确实是必需的,那么你需要确保它在被使用...
When using Pandas in Python, a library for data manipulation and analysis, you might have encountered an error like "NameError: name 'df'/'pd' is not defined". In this Byte, we'll show why these errors occur and how you can avoid them. Understanding this 'df' NameError The df name...
The Python NameError: name 'df' is not defined occurs when we try to access the `df` (DataFrame) variable before it is defined.
class draw_maze(screen):NameError:name 'screen' is not defined'''create on 2013\08\31 @author XGong'''import pygame from pygame.locals import * from random import randint,choice global screen_sizescreen_size=800global r_colorr_color=(0,0,0)class room(object):def __init__(self,x,y...
Library not loaded: @rpath/libmysqlclient.21.dylib、NameError: name '_mysql' is not defined,是说没有添加依赖库libmysqlclient.21.dylib,首先我们来查找一下这个库所在位置,执行命令: find / -name "libmysqlclient.21.dylib" 结果如下: 因此,只需将/usr/local/mysql-8.0.22-macos10.15-x86_64/lib/添加...
import pandas as pd df = pd.DataFrame({1:[0.1, 0.2]}) df.query("`1` == 0.1") Issue Description The above code raise a UndefinedVariableError: name 'BACKTICK_QUOTED_STRING_1' is not defined Expected Behavior returns the first row Installed Versions INSTALLED VERSIONS commit : 0691c5c ...
closes BUG: df.query("1 == 0.1") failed with UndefinedVariableError: name 'BACKTICK_QUOTED_STRING_1' is not defined #60494 Tests added and passed if fixing a bug or adding a new feature All code ...
class draw_maze(screen):NameError:name 'screen' is not defined'''create on 2013\08\31 @author XGong'''import pygame from pygame.locals import * from random import randint,choice global screen_sizescreen_size=800global r_colorr_color=(0,0,0)class room(object):def __init__(self,x,y...
BUG: df.query("1 == 0.1") failed with UndefinedVariableError: name 'BACKTICK_QUOTED_STRING_1' is not defined #4623 Sign in to view logs Summary Jobs cleanup Run details Usage Workflow file Triggered via pull request January 10, 2025 17:19 ...