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ImportError: cannot import name '_mask' #410

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rongxuanhong opened this issue Dec 28, 2018 · 26 comments
Open

ImportError: cannot import name '_mask' #410

rongxuanhong opened this issue Dec 28, 2018 · 26 comments

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@rongxuanhong
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I use pytorch-1.0 and python3.6.7,and build under conda.the process of building did't show error.but,when start to train trainval.net,it shows the following error:

File "trainval_net.py", line 27, in
from roi_data_layer.roidb import combined_roidb
File "/home/ccyoung/workspace/faster-rcnn.pytorch/lib/roi_data_layer/roidb.py", line 9, in
from datasets.factory import get_imdb
File "/home/ccyoung/workspace/faster-rcnn.pytorch/lib/datasets/factory.py", line 15, in
from datasets.coco import coco
File "/home/ccyoung/workspace/faster-rcnn.pytorch/lib/datasets/coco.py", line 23, in
from pycocotools.coco import COCO
File "/home/ccyoung/workspace/faster-rcnn.pytorch/lib/pycocotools/coco.py", line 60, in
from . import mask
File "/home/ccyoung/workspace/faster-rcnn.pytorch/lib/pycocotools/mask.py", line 3, in
from . import _mask
ImportError: cannot import name '_mask'

it seems the building problem of coco API
@geekli
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geekli commented Dec 28, 2018

make sure the branch is pytorch-1.0
and
cd lib && python setup.py build develop
then retry?

@rongxuanhong
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Author

make sure the branch is pytorch-1.0
and
cd lib && python setup.py build develop
then retry?
make sure. I clone it with --b

@KwanWaiChung
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make sure the branch is pytorch-1.0
and
cd lib && python setup.py build develop
then retry?

Having the same problem as well. I am using the pytorch-1.0 branch and has run "python setup.py build develop".

@KwanWaiChung
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Just find out that you have to install the CoCO API.

cd data

git clone https://github.com/pdollar/coco.git cd coco/PythonAPI

make

cd ../../..

@Bijiazhou
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Just find out that you have to install the CoCO API.

cd data

git clone https://github.com/pdollar/coco.git cd coco/PythonAPI

make

cd ../../..

thx a lot

@shahmustafa
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I am using pytorch 1.0 and python 3.6.7

Traceback (most recent call last):
File "demo.py", line 27, in
from roi_data_layer.roidb import combined_roidb
File "D:\OCR\Code\PyTorch\faster-rcnn.pytorch-pytorch-1.0\lib\roi_data_layer\roidb.py", line 9, in
from datasets.factory import get_imdb
File "D:\OCR\Code\PyTorch\faster-rcnn.pytorch-pytorch-1.0\lib\datasets\factory.py", line 15, in
from datasets.coco import coco
File "D:\OCR\Code\PyTorch\faster-rcnn.pytorch-pytorch-1.0\lib\datasets\coco.py", line 23, in
from pycocotools.coco import COCO
File "D:\OCR\Code\PyTorch\faster-rcnn.pytorch-pytorch-1.0\data\coco\PythonAPI\pycocotools\coco.py", line 55, in
from . import mask as maskUtils
File "D:\OCR\Code\PyTorch\faster-rcnn.pytorch-pytorch-1.0\data\coco\PythonAPI\pycocotools\mask.py", line 3, in
import pycocotools._mask as _mask
File "init.pxd", line 872, in init pycocotools._mask
ValueError: numpy.ufunc has the wrong size, try recompiling. Expected 192, got 216

@zc-alexfan
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Just a side note. If which python does not refer to the python version that you use, you might want to modify the MakeFile. In my case, I need to change python to python3.6 in the MakeFile.

@EMCP
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EMCP commented Mar 5, 2019 •
edited
Loading

I tried and failed to get things working...

CoCO API is now at https://github.com/cocodataset/cocoapi

I am seeing the following error even after @JojoFisherman 's suggestions

(pytorch1_py36) myPC:/git/jwyang/faster-rcnn.pytorch$ CUDA_VISIBLE_DEVICES=$GPU_ID python trainval_net.py --dataset pascal_voc --net res101 --bs 1 --nw 1 --lr $LEARNING_RATE --lr_decay_step $DECAY_STEP --cuda
Traceback (most recent call last):
  File "trainval_net.py", line 27, in <module>
    from roi_data_layer.roidb import combined_roidb
  File "/git/jwyang/faster-rcnn.pytorch/lib/roi_data_layer/roidb.py", line 9, in <module>
    from datasets.factory import get_imdb
  File "/git/jwyang/faster-rcnn.pytorch/lib/datasets/factory.py", line 15, in <module>
    from datasets.coco import coco
  File "/git/jwyang/faster-rcnn.pytorch/lib/datasets/coco.py", line 23, in <module>
    from pycocotools.coco import COCO
  File "/git/jwyang/faster-rcnn.pytorch/lib/pycocotools/coco.py", line 60, in <module>
    from . import mask
  File "/git/jwyang/faster-rcnn.pytorch/lib/pycocotools/mask.py", line 3, in <module>
    from . import _mask
ImportError: cannot import name '_mask'

I am using Anaconda with Python 3.6

(pytorch1_py36) myPC:/git/jwyang/faster-rcnn.pytorch$ python --version
Python 3.6.8 :: Anaconda, Inc.

@EMCP EMCP mentioned this issue Mar 5, 2019
Open
@EMCP
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EMCP commented Mar 5, 2019

progress, I fixed the stale COCO pytools

see: cocodataset/cocoapi#59 (comment)

This was referenced Jun 11, 2019
Closed
Open
@marcunzueta
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Just find out that you have to install the CoCO API.

cd data

git clone https://github.com/pdollar/coco.git cd coco/PythonAPI

make

cd ../../..

Please @jwyang add into the readme for easy install.

@WUT-xiaoming
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我使用pytorch-1.0和python3.6.7，并在conda下进行构建。构建过程未显示错误。但是，当开始训练trainval.net时，它显示以下错误：

文件“trainval_net.py”，第27行，在
从roi_data_layer.roidb进口combined_roidb
文件“/home/ccyoung/workspace/faster-rcnn.pytorch/lib/roi_data_layer/roidb.py”，9号线，在
从datasets.factory进口get_imdb
文件“ /home/ccyoung/workspace/faster-rcnn.pytorch/lib/datasets/factory.py”，第15行，
来自datasets.coco import coco
文件“ /home/ccyoung/workspace/faster-rcnn.pytorch/ pycocotools.coco中的“ lib / datasets / coco.py”行23，
从中导入COCO
文件“ /home/ccyoung/workspace/faster-rcnn.pytorch/lib/pycocotools/coco.py”，行60
。
从中导入遮罩文件“ /home/ccyoung/workspace/faster-rcnn.pytorch/lib/pycocotools/mask.py”，第3行
。
ImportError：无法导入名称“ _mask”

似乎可可API的构建问题

请问您是怎么解决这个问题的

@rongxuanhong
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rongxuanhong commented Nov 15, 2019 via email

@WUT-xiaoming
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WUT-xiaoming commented Nov 15, 2019 via email

@rongxuanhong
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rongxuanhong commented Nov 15, 2019 via email

@WUT-xiaoming
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WUT-xiaoming commented Nov 15, 2019 via email

@rongxuanhong
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rongxuanhong commented Nov 15, 2019 via email

@caohe115
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非常感谢您的回答！！这个COCO的安装目录有要求吗？
…
------------------ 原始邮件 ------------------ 发件人: "rongxuanHong"<notifications@github.com>; 发送时间: 2019年11月15日(星期五) 下午2:46 收件人: "jwyang/faster-rcnn.pytorch"<faster-rcnn.pytorch@noreply.github.com>; 抄送: "1254305549"<1254305549@qq.com>; "Comment"<comment@noreply.github.com>; 主题: Re: [jwyang/faster-rcnn.pytorch] ImportError: cannot import name '_mask' (#410) https://github.com/cocodataset/cocoapi
------------------&nbsp;原始邮件&nbsp;------------------ 发件人:&nbsp;"WUT-xiaoming"<notifications@github.com&gt;; 发送时间:&nbsp;2019年11月15日(星期五) 中午11:36 收件人:&nbsp;"jwyang/faster-rcnn.pytorch"<faster-rcnn.pytorch@noreply.github.com&gt;; 抄送:&nbsp;"洪荣宣"<389817374@qq.com&gt;;"Author"<author@noreply.github.com&gt;; 主题:&nbsp;Re: [jwyang/faster-rcnn.pytorch] ImportError: cannot import name '_mask' (#410) 请问这个COCO要怎么安装呢？ 作者在README中写用python2.7编译ROI等模块，是不是跟这个有关系
------------------&amp;nbsp;原始邮件&amp;nbsp;------------------ 发件人: "rongxuanHong"<notifications@github.com&amp;gt;; 发送时间: 2019年11月15日(星期五) 中午11:33 收件人: "jwyang/faster-rcnn.pytorch"<faster-rcnn.pytorch@noreply.github.com&amp;gt;; 抄送: "1254305549"<1254305549@qq.com&amp;gt;; "Comment"<comment@noreply.github.com&amp;gt;; 主题: Re: [jwyang/faster-rcnn.pytorch] ImportError: cannot import name &amp;#39;_mask&amp;#39; (#410) 你好，我那时是COCO的安装包没安装好。
------------------&amp;amp;nbsp;原始邮件&amp;amp;nbsp;------------------ 发件人:&amp;amp;nbsp;"WUT-xiaoming"<notifications@github.com&amp;amp;gt;; 发送时间:&amp;amp;nbsp;2019年11月15日(星期五) 中午11:31 收件人:&amp;amp;nbsp;"jwyang/faster-rcnn.pytorch"<faster-rcnn.pytorch@noreply.github.com&amp;amp;gt;; 抄送:&amp;amp;nbsp;"洪荣宣"<389817374@qq.com&amp;amp;gt;;"Author"<author@noreply.github.com&amp;amp;gt;; 主题:&amp;amp;nbsp;Re: [jwyang/faster-rcnn.pytorch] ImportError: cannot import name '_mask' (#410) 我使用pytorch-1.0和python3.6.7，并在conda下进行构建。构建过程未显示错误。但是，当开始训练trainval.net时，它显示以下错误： 文件“trainval_net.py”，第27行，在 从roi_data_layer.roidb进口combined_roidb 文件“/home/ccyoung/workspace/faster-rcnn.pytorch/lib/roi_data_layer/roidb.py”，9号线，在 从datasets.factory进口get_imdb 文件“ /home/ccyoung/workspace/faster-rcnn.pytorch/lib/datasets/factory.py”，第15行， 来自datasets.coco import coco 文件“ /home/ccyoung/workspace/faster-rcnn.pytorch/ pycocotools.coco中的“ lib / datasets / coco.py”行23， 从中导入COCO 文件“ /home/ccyoung/workspace/faster-rcnn.pytorch/lib/pycocotools/coco.py”，行60 。 从中导入遮罩文件“ /home/ccyoung/workspace/faster-rcnn.pytorch/lib/pycocotools/mask.py”，第3行 。 ImportError：无法导入名称“ _mask” 似乎可可API的构建问题 请问您是怎么解决这个问题的 — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe. — You are receiving this because you commented. Reply to this email directly, view it on GitHub, or unsubscribe. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe. — You are receiving this because you commented. Reply to this email directly, view it on GitHub, or unsubscribe.
https://blog.csdn.net/weixin_42279610/article/details/103086379

非常感谢您的回答！！这个COCO的安装目录有要求吗？
…
------------------ 原始邮件 ------------------ 发件人: "rongxuanHong"<notifications@github.com>; 发送时间: 2019年11月15日(星期五) 下午2:46 收件人: "jwyang/faster-rcnn.pytorch"<faster-rcnn.pytorch@noreply.github.com>; 抄送: "1254305549"<1254305549@qq.com>; "Comment"<comment@noreply.github.com>; 主题: Re: [jwyang/faster-rcnn.pytorch] ImportError: cannot import name '_mask' (#410) https://github.com/cocodataset/cocoapi
------------------&nbsp;原始邮件&nbsp;------------------ 发件人:&nbsp;"WUT-xiaoming"<notifications@github.com&gt;; 发送时间:&nbsp;2019年11月15日(星期五) 中午11:36 收件人:&nbsp;"jwyang/faster-rcnn.pytorch"<faster-rcnn.pytorch@noreply.github.com&gt;; 抄送:&nbsp;"洪荣宣"<389817374@qq.com&gt;;"Author"<author@noreply.github.com&gt;; 主题:&nbsp;Re: [jwyang/faster-rcnn.pytorch] ImportError: cannot import name '_mask' (#410) 请问这个COCO要怎么安装呢？ 作者在README中写用python2.7编译ROI等模块，是不是跟这个有关系
------------------&amp;nbsp;原始邮件&amp;nbsp;------------------ 发件人: "rongxuanHong"<notifications@github.com&amp;gt;; 发送时间: 2019年11月15日(星期五) 中午11:33 收件人: "jwyang/faster-rcnn.pytorch"<faster-rcnn.pytorch@noreply.github.com&amp;gt;; 抄送: "1254305549"<1254305549@qq.com&amp;gt;; "Comment"<comment@noreply.github.com&amp;gt;; 主题: Re: [jwyang/faster-rcnn.pytorch] ImportError: cannot import name &amp;#39;_mask&amp;#39; (#410) 你好，我那时是COCO的安装包没安装好。
------------------&amp;amp;nbsp;原始邮件&amp;amp;nbsp;------------------ 发件人:&amp;amp;nbsp;"WUT-xiaoming"<notifications@github.com&amp;amp;gt;; 发送时间:&amp;amp;nbsp;2019年11月15日(星期五) 中午11:31 收件人:&amp;amp;nbsp;"jwyang/faster-rcnn.pytorch"<faster-rcnn.pytorch@noreply.github.com&amp;amp;gt;; 抄送:&amp;amp;nbsp;"洪荣宣"<389817374@qq.com&amp;amp;gt;;"Author"<author@noreply.github.com&amp;amp;gt;; 主题:&amp;amp;nbsp;Re: [jwyang/faster-rcnn.pytorch] ImportError: cannot import name '_mask' (#410) 我使用pytorch-1.0和python3.6.7，并在conda下进行构建。构建过程未显示错误。但是，当开始训练trainval.net时，它显示以下错误： 文件“trainval_net.py”，第27行，在 从roi_data_layer.roidb进口combined_roidb 文件“/home/ccyoung/workspace/faster-rcnn.pytorch/lib/roi_data_layer/roidb.py”，9号线，在 从datasets.factory进口get_imdb 文件“ /home/ccyoung/workspace/faster-rcnn.pytorch/lib/datasets/factory.py”，第15行， 来自datasets.coco import coco 文件“ /home/ccyoung/workspace/faster-rcnn.pytorch/ pycocotools.coco中的“ lib / datasets / coco.py”行23， 从中导入COCO 文件“ /home/ccyoung/workspace/faster-rcnn.pytorch/lib/pycocotools/coco.py”，行60 。 从中导入遮罩文件“ /home/ccyoung/workspace/faster-rcnn.pytorch/lib/pycocotools/mask.py”，第3行 。 ImportError：无法导入名称“ _mask” 似乎可可API的构建问题 请问您是怎么解决这个问题的 — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe. — You are receiving this because you commented. Reply to this email directly, view it on GitHub, or unsubscribe. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe. — You are receiving this because you commented. Reply to this email directly, view it on GitHub, or unsubscribe.
没有要求，在随意一个空的目录下，下载最新的并编译就好。你可以参考下我的，我刚解决这个问题，运行成功fasterrcnn https://blog.csdn.net/weixin_42279610/article/details/103086379

@n0obcoder
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Just find out that you have to install the CoCO API.

cd data

git clone https://github.com/pdollar/coco.git cd coco/PythonAPI

make

cd ../../..

I am using Windows 10, how do i solve the problem ( from . import _mask
ImportError: cannot import name '_mask' from 'pycocotools' ())

Please help.

1 similar comment
@n0obcoder
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Just find out that you have to install the CoCO API.

cd data

git clone https://github.com/pdollar/coco.git cd coco/PythonAPI

make

cd ../../..

I am using Windows 10, how do i solve the problem ( from . import _mask
ImportError: cannot import name '_mask' from 'pycocotools' ())

Please help.

@Flashkong
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Just find out that you have to install the CoCO API.

cd data

git clone https://github.com/pdollar/coco.git cd coco/PythonAPI

make

cd ../../..

it works. thank you!!!

@wwl33
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wwl33 commented Mar 25, 2020

Just find out that you have to install the CoCO API.

cd data

git clone https://github.com/pdollar/coco.git cd coco/PythonAPI

make

cd ../../..

I am sorry,i cannot understand "make" and"cd../../",Can you explain it in more detail?

@JiafengLiao
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I tried pip install pycocotools. And it worked

@JiafengLiao
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JiafengLiao commented Apr 15, 2020 •
edited
Loading

make sure the branch is pytorch-1.0
and
cd lib && python setup.py build develop
then retry?

Having the same problem as well. I am using the pytorch-1.0 branch and has run "python setup.py build develop".

Same issue here and I tried "pip install pycocotools" or "conda install". It worked

@aDecisionTree
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make sure the branch is pytorch-1.0
and
cd lib && python setup.py build develop
then retry?

Having the same problem as well. I am using the pytorch-1.0 branch and has run "python setup.py build develop".

Same issue here and I tried "pip install pycocotools" or "conda install". It worked

thank you , it worked well!

@decoli
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decoli commented May 10, 2020 •
edited
Loading

Just find out that you have to install the CoCO API.

cd data

git clone https://github.com/pdollar/coco.git cd coco/PythonAPI

make

cd ../../..

When I tried to make, got

error: command 'D:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.25.28610\bin\HostX86\x64\cl.exe' failed with exit status 2
make: *** [Makefile:3: all] Error 1

Dose anyone know what this means ?

@TheLostIn
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Just find out that you have to install the CoCO API.
cd data
git clone https://github.com/pdollar/coco.git cd coco/PythonAPI
make
cd ../../..

When I tried to make, got

error: command 'D:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.25.28610\bin\HostX86\x64\cl.exe' failed with exit status 2
make: *** [Makefile:3: all] Error 1

Dose anyone know what this means ?

After generating pycocotools directory('xxx/xxx/data/coco/PythonAPI/pycocotools'), replace the original pycocotools with this new one. The new pycocotools should include file.so like '_mask.cpython-36m-x86_64-linux-gnu.so'.

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