您现在的位置是：首页 >学无止境 >No module named ‘pycocotools._mask‘网站首页学无止境

Here is the Solution.
I am very sure it will work for you guys.

1. 1) First open a command prompt and run
   git clone GitHub - cocodataset/cocoapi: COCO API - Dataset @ http://cocodataset.org/

2. 2) Then move to this directory
   cd coco/PythonAPI

3. 3) And then edit the setup.py file in the coco/PythonAPI directory from this
   extra_compile_args=['-Wno-cpp', '-Wno-unused-function', '-std=c99'],

to this
extra_compile_args=['-std=c99'],

4) then save

1. And then in the coco/PythonAPI directory, run
   python setup.py install

error: Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft C++ Build Tools": https://visualstudio.microsoft.com/visual-cpp-build-tools/