pip install --user fancyimpute -i https://pypi.douban.com/simple

D:\ProgramData\Anaconda3;D:\ProgramData\Anaconda3\Library\mingw-w64\bin;D:\ProgramData\Anaconda3\Library\usr\bin;D:\ProgramData\Anaconda3\Library\bin;D:\ProgramData\Anaconda3\Scripts;%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\;C:\Program Files\Graphviz\bin;C:\Program Files\MySQL\MySQL Server 8.0\bin;D:\軟件\swigwin-4.0.2\swigwin-4.0.2;C:\Program Files (x86)\Windows Kits\8.1\Windows Performance Toolkit\;D:\軟件\ffmpeg-4.3.2-2021-02-27-essentials_build\ffmpeg-4.3.2-2021-02-27-essentials_build\bin;C:\Users\Administrator\AppDa

ta\Roaming\Python\Python38\Scripts;C:\Users\Administrator\AppData\Roaming\Python\Python38\site-packages

WARNING: The scripts estimator_ckpt_converter.exe, import_pb_to_tensorboard.ex

e, saved_model_cli.exe, tensorboard.exe, tf_upgrade_v2.exe, tflite_convert.exe,

toco.exe and toco_from_protos.exe are installed in 'C:\Users\Administrator\AppDa

ta\Roaming\Python\Python38\Scripts' which is not on PATH.

Consider adding this directory to PATH or, if you prefer to suppress this warn

ing, use --no-warn-script-location.

pip install --target=D:/ProgramData/Anaconda3/Lib/site-packages fancyimpute -i https://pypi.douban.com/simple

D:\ProgramData\Anaconda3\Lib\site-packages

pip install --target=D:/ProgramData/Anaconda3/Lib/site-packages --use-feature=2020-resolver pyqtwebengine==5.12 -i https://pypi.douban.com/simple

pip install --target=D:/ProgramData/Anaconda3/Lib/site-packages --use-feature=2020-resolver --upgrade pyqt5==5.12 -i https://pypi.douban.com/simple

#升級spyder

pip install --target=D:\ProgramData\Anaconda3\Lib\site-packages --use-feature=2020-resolver --upgrade spyder==4.2.4 -i https://pypi.douban.com/simple

ERROR: tensorflow 2.4.1 requires numpy~=1.19.2, but you'll have numpy 1.20.2 whi

ch is incompatible.

然后看下我們當前電腦中numpy的版本

C:\Users\Administrator>conda list numpy

# packages in environment at D:\ProgramData\Anaconda3:

#

# Name Version Build Channel

numpy 1.20.2 pypi_0 pypi

numpy-base 1.19.2 py38ha3acd2a_0

numpydoc 1.1.0 pyhd3eb1b0_1

然后看下我們當前電腦中tensorflow的版本

C:\Users\Administrator>conda list tensorflow

# packages in environment at D:\ProgramData\Anaconda3:

#

# Name Version Build Channel

tensorflow 2.4.1 pypi_0 pypi

tensorflow-estimator 2.4.0 pypi_0 pypi

#結果提示當前的tensorflow版本需要一個比較低版本的numpy

#這時我們要么升級tensorflow,要么降級numpy

#我們先升級tensorflow試一試

#升級 tensorflow

#先看下tensorflow都有哪些版本

pip install tensorflow==*

#看下我們電腦上裝的tensorflow是哪個版本

conda list tensorflow

#選擇一個tensorflow版本進行安裝

pip install --target=D:\ProgramData\Anaconda3\Lib\site-packages --use-feature=2020-resolver --upgrade tensorflow==2.5.0rc1 -i https://pypi.douban.com/simple

結果提示如下錯誤，有可能是因為豆瓣鏡像上沒有這個版本。

ERROR: Could not find a version that satisfies the requirement tensorflow==2.5.0

ERROR: No matching distribution found for tensorflow==2.5.0

接下來我們降級numpy

pip install --target=D:\ProgramData\Anaconda3\Lib\site-packages --use-feature=2020-resolver --upgrade numpy==1.19.2 -i https://pypi.douban.com/simple

發(fā)現(xiàn)可以安裝成功，看下現(xiàn)在電腦中的numpy變成多少了

C:\Users\Administrator>conda list numpy

# packages in environment at D:\ProgramData\Anaconda3:

#

# Name Version Build Channel

numpy 1.20.2 pypi_0 pypi

numpy-base 1.19.2 py38ha3acd2a_0

numpydoc 1.1.0 pyhd3eb1b0_1

為什么那個numpy還是1.20.2呢？如何處理

我們先卸載numpy,然后再安裝numpy

在anaconda prompt里面執(zhí)行下面的代碼

pip uninstall numpy

pip install --use-feature=2020-resolver --upgrade numpy==1.19.2 -i https://pypi.douban.com/simple

發(fā)現(xiàn)沒有錯誤提示，再看下numpy的版本

C:\Users\Administrator>conda list numpy

# packages in environment at D:\ProgramData\Anaconda3:

#

# Name Version Build Channel

numpy 1.19.5 pypi_0 pypi

numpy-base 1.19.2 py38ha3acd2a_0

numpydoc 1.1.0 pyhd3eb1b0_1

#接下來再安裝指定版本的spyder

#根據(jù)前面的經(jīng)驗，我們先卸載已經(jīng)安裝的spyder

啟動anaconda prompt 然后輸入pip uninstall spyder

然后再輸入 pip install spyder --use-feature=2020-resolver --upgrade spyder==4.2.4 -i https://pypi.douban.com/simple

然后也沒有提示出錯，spyder4.2.4 安裝成功

然后安裝fancyimpute

如果以前安裝過fancyimpute，卻沒有安裝成功，則需要先卸載一下

pip uninstall fancyimpute

然后再安裝

pip install --use-feature=2020-resolver --upgrade fancyimpute -i https://pypi.douban.com/simple

沒有錯誤提示，但是也沒有說安裝成功。

然后用import命令導入，卻出現(xiàn)錯誤提示

---------------------------------------------------------------------------

RuntimeError Traceback (most recent call last)

RuntimeError: module compiled against API version 0xe but this version of numpy is 0xd

---------------------------------------------------------------------------

ImportError Traceback (most recent call last)

<ipython-input-1-3f82472c4160> in <module>

----> 1 import fancyimpute

D:\ProgramData\Anaconda3\lib\site-packages\fancyimpute\__init__.py in <module>

2

3 from .solver import Solver

----> 4 from .nuclear_norm_minimization import NuclearNormMinimization

5 from .matrix_factorization import MatrixFactorization

6 from .iterative_svd import IterativeSVD

D:\ProgramData\Anaconda3\lib\site-packages\fancyimpute\nuclear_norm_minimization.py in <module>

11 # limitations under the License.

12

---> 13 import cvxpy

應該是numpy版本太低，那我們還需要將numpy 版本走回到新版本，汗

先關閉你打開的spyder 還有jupyter notebook(后臺)，否則執(zhí)行下面的代碼會有錯誤提示

先卸載numpy 然后再安裝numpy

啟動anaconda prompt

pip uninstall numpy

卸載過程沒有出現(xiàn)錯誤提示。但是為什么卸載完成之后用conda list命令看的時候還是有numpy呢？

這應該是沒有卸載干凈，我們還需要手動將site-packages下面和numpy直接相關的三個文件夾刪掉

numpy numpydoc numpydoc-1.1.0.dist-info

刪掉之后再執(zhí)行conda list還是能看到numpy庫 pip list 看不到numpy庫

打開一個jupyter book,然后在里面輸入import numpy庫，已經(jīng)提示這個庫不存在。

然后關閉jupyter notebook執(zhí)行

pip install --use-feature=2020-resolver --upgrade numpy -i https://pypi.douban.com/simple

提示錯誤

Installing collected packages: numpy

ERROR: tensorflow 2.4.1 requires numpy~=1.19.2, but you'll have numpy 1.20.2 whi

ch is incompatible.

Successfully installed numpy-1.20.2

但是import numpy庫已經(jīng)可以正常導入了。site-packages文件夾下面多了兩個文件夾 numpy和 numpy-1.20.2.dist-info

site-packages文件夾下面有兩個和tensorflow相關的文件。分別是tensorflow和tensorflow-2.4.1.dist-info

我們換成高版本的tensorflow試試

先卸載pip uninstall tensorflow沒有錯誤提示 然后刪除site-packages文件夾下面的tensorflow和tensorflow-2.4.1.dist-info兩個文件夾

執(zhí)行pip list看不到tensorflow了

執(zhí)行conda list 也看不到tensorflow了 numpy顯示1.20.2的版本

然后我們安裝tensorflow

pip install --use-feature=2020-resolver --upgrade tensorflow -i https://pypi.douban.com/simple

發(fā)現(xiàn)tensorflow的安裝過程中為了能讓tensorflow正確安裝卸載了電腦上已經(jīng)裝好的numpy 1.20.2,重新安裝了numpy-1.19.5，具體過程如下

Installing collected packages: numpy, tensorflow

Attempting uninstall: numpy

Found existing installation: numpy 1.20.2

Uninstalling numpy-1.20.2:

Successfully uninstalled numpy-1.20.2

Successfully installed numpy-1.19.5 tensorflow-2.4.1

沒有錯誤提示成功安裝了tensorflow-2.4.1

這時發(fā)現(xiàn)site-packages文件夾下面以前的numpy-1.20.2.dist-info變成了numpy-1.19.5.dist-info

也就是numpy-1.19.5 tensorflow-2.4.1這兩個是相匹配的。

接下來重整思路看下如何安裝pip install fancyimpute