您可以逐行检查代码,并确保所有变量的名称和用法都正确无误。 请注意,以上解决方法是针对一般情况下出现'df not defined'错误的处理方法。具体解决方法可能会因您的代码和环境而有所不同。如果问题仍然存在,请提供更多的代码和错误信息,以便进行进一步的排查和帮助。
The Python "NameError: name 'df' is not defined" occurs when we try to access the df (DataFrame) variable before it is defined. To solve the error, make sure to declare the df variable before accessing it. Here is an example of how the error occurs. main.py import pandas as pd #...
The df name error usually occurs when you try to use a DataFrame object df before it has been defined. This is a common mistake when working with Pandas (or any Python script, really), which uses the DataFrame object to store data in two-dimensional size-mutable, potentially heterogeneous ...
要解决这个错误,需要确保在lambda函数中使用的所有名称都已经定义。可以检查代码中是否有拼写错误或者是否忘记定义某个变量或函数。 关于云计算领域的专业知识,云计算是一种通过网络提供计算资源和服务的模式。它可以提供灵活、可扩展和经济高效的计算能力,帮助用户快速构建和部署应用程序。 云计算的优势包括: 弹性伸...
6 df NameError: name 'pd' is not defined在网上找了好久,都没有找到解决的办法,有没有高手帮忙下?shigj123456 童生 2 import pandas as pd from matplotlib import pyplot as pltplt.rcParams['font.family'] = 'SimHei' plt.rcParams['axes.unicode_minus'] = False pd.options.display.float_format...
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...
I receive the error related to global_df is not defined. I am new to multiprocessing. The main problem is with the stock_sample where the variables such as global_df, target,global_ems, and global_ci are not defined. I am not sure how can i resolve this error. I tried to make ...
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
环境搭建: 1. Arduino UNO R3开发板, 2. Arduino IDE。 我这里使用的是1.8.3。可以在https://www.arduino.cc/en/Main/Software下载并安装。 安装好之后,桌面会有如下图标。 示例开发: 1.连接设备。 本例中我们以Analog Linear Temperature Sensor(DFR0023)并结合DFR0021-R为例,基于... ...