Python编程中“NameError: name is not defined”的解决之道 在Python中,如果你遇到了"NameError: name is not defined"的错误,这通常意味着你试图使用一个尚未被定义或初始化的变量、函数或对象。本文将详细解析这个错误的原因,并提供一系列解决策略。#优质作者榜# 问题起因 这个错误的出现,主要是由于以下几种...
NameError: global name 'actionWithlevel' is not defined If "print" command used then there is no problems with dealing with variable. But when I'm trying to get only specific char from the string I'm getting error. I can't understand why does it happening. And if it's a normal...
Traceback (most recent call last): File "DATAmine.py", line 15, in <module> make_picture() File "DATAmine.py", line 13, in make_picture imshow(arr) NameError: global name 'imshow' is not defined (My program's called DATAmine.py) What's the deal here? Is there som...
2 `NameError: name `qgis` is not defined` in QGIS Plugins 0 NameError: global name 'layer' is not defined Hot Network Questions Why is it surprising that the CMB is so homogeneous? What is the meaning of a sentence from Agatha Christie (*Murder of Roger Ackroyd...
185, in main args = parse_commandline() File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/frescobaldi_app/main.py", line 53, in parse_commandline argparse._ = _ # let argparse use our translations NameError: global name '_' is not defined ...
listch 写在if 里 造成不满足条件时,没有定义。可以在函数内部第一行先赋值一下 listch = ""...
python程序gridregression.py运行出错: NameError: global name 'out_filename' is not defined 错误如下Traceback (most recent call last) File "D:\huigui\libsvm\Python24\gridregression.py", line 281, in ? result_file = open(out_filename,'w',0)NameError: global name 'out_filename' is not ...
如果说是因为赋值操作没有执行,那么为什么该变量名在局部命名空间是可见的?(不可见的话,会有这类错误:NameError: global name 'xxx' is not defined,根据UnboundLocalError定义也可判断可见性) 问题到底出在哪里?怎样正确理解上面三个例子中的错误? 可见性与绑定 ...
File "EX_03_RFnoise.py", line 85, in <module> long_tracker = RingAndRFTracker(rf_params, beam) File "/home/BLonD-master/trackers/tracker.py", line 231, in __init__ self.logger = logging.getLogger(__class__.__name__) NameError: global name '__class__' is not defined I was...
python的NameError: global name 'json' is not defined解决,报错:json未定义在使用api接口的时候json.jumps调用报错解决:直