AttributeError: 'NoneType' object has no attribute 'extend' 或者AttributeError: 'NoneType' object has no attribute 'append' 原因:这两种方法都是没有返回值的,也就是返回的是NoneType类型,而NoneType数据再次调用extend或者append方法时就会报上面的error。 # 错误写法:将extend的返回值赋值给aa,导致aa此时成为...
AttributeError: 'NoneType' object has no attribute 'extend' 或者AttributeError: 'NoneType' object has no attribute 'append' 原因:这两种方法都是没有返回值的,也就是返回的是NoneType类型,而NoneType数据再次调用extend或者append方法时就会报上面的error。 # 错误写法:将extend的返回值赋值给aa,导致aa此时成为...
Hopefully, that's given you enough clues to fix your code. I won't provide working code at this stage, since I suspect this is a homework problem. Note that the math module has an exp function which you can use to test the accuracy of your power series calculations. Share Improve this...
AttributeError: 'dict_values' object has no attribute 'extend' - repo sync I am trying to run repo init and repo sync commands and having trouble with them as detailed below: repo init -u <git-url> -b release -m <manifest-xml> --repo-url=<url> --repo-branch=<branch>...
# Caught error in pytype: 'set' object has no attribute 'extend' # Traceback (most recent call last): # File "/home/manu/.local/lib/python3.8/site-packages/pytype/io.py", line 156, in check_or_generate_pyi # errorlog, result, ast = generate_pyi( # File "/home/manu/.local/...
result=finder(distlib_package).find(name).bytesAttributeError:'NoneType'objecthas no attribute'bytes' 解决办法↓ easy_install-U pip 命令行显示如下信息说明升级成功 Searchingforpip Reading https://pypi.org/simple/pip/Downloading https://files.pythonhosted.org/packages/fe/ef/60d7ba03b5c442309ef42e7d...
Hi all, I got an error saying that 'numpy.ndarray' object(which is the schedule in the following code) has no attribute 'extend'. for i in range(7): for schedulename in range(len(ScheduleCompact)): if ScheduleCompact[schedulename].Name =...
listtemp=list(range(...))
extend是1个列表+另一个列表, 它会改变原来列表的长度,而不会生成一个新的列表 所以,如果你使用了a=list.extend(XXX),它并不会如你希望 返回一个列表,而是一个None 示例: 1In [6]: b=[1,2]23In [7]: c=b.extend([3])45In [8]: b6Out[8]: [1, 2, 3]910In [10]:print(c)11None1213...