安装了matplotlib，却无法import成功

JeanLove 2018-05-26 04:57:58

我在mac上面，已经pip安装了matplotlib：



$pip install matplotlib

Looking in indexes: http://mirrors.aliyun.com/pypi/simple/

Collecting matplotlib

  Downloading http://mirrors.aliyun.com/pypi/packages/61/38/d70e8bf77d5cb27d5f3595edd0b3978825063feadd023786d2591e393e6e/matplotlib-2.2.2-cp27-cp27m-macosx_10_6_intel.macosx_10_9_intel.macosx_10_9_x86_64.macosx_10_10_intel.macosx_10_10_x86_64.whl (13.7MB)

    100% |－－－－－－－－－－－－－| 13.7MB 5.1MB/s

Requirement already satisfied: numpy>=1.7.1 in /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages (from matplotlib) (1.14.3)

Collecting pyparsing!=2.0.4,!=2.1.2,!=2.1.6,>=2.0.1 (from matplotlib)

  Downloading http://mirrors.aliyun.com/pypi/packages/6a/8a/718fd7d3458f9fab8e67186b00abdd345b639976bc7fb3ae722e1b026a50/pyparsing-2.2.0-py2.py3-none-any.whl (56kB)

    100% |－－－－－－－－－－－－－| 61kB 614kB/s

Requirement already satisfied: python-dateutil>=2.1 in /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages (from matplotlib) (2.7.2)

Collecting kiwisolver>=1.0.1 (from matplotlib)

  Downloading http://mirrors.aliyun.com/pypi/packages/79/d8/94633718f3f77dcb638687a77ba199325a1cb158d2d4b00c9dc17f2b5c72/kiwisolver-1.0.1-cp27-cp27m-macosx_10_6_intel.macosx_10_9_intel.macosx_10_9_x86_64.macosx_10_10_intel.macosx_10_10_x86_64.whl (110kB)

    100% |－－－－－－－－－－－－－| 112kB 1.1MB/s

Collecting cycler>=0.10 (from matplotlib)

  Downloading http://mirrors.aliyun.com/pypi/packages/f7/d2/e07d3ebb2bd7af696440ce7e754c59dd546ffe1bbe732c8ab68b9c834e61/cycler-0.10.0-py2.py3-none-any.whl

Collecting subprocess32 (from matplotlib)

  Downloading http://mirrors.aliyun.com/pypi/packages/a2/2e/1da7c3c6f6e17fc193e257449dfaa687b8374ce03c844b1e7714dec93b31/subprocess32-3.5.1-cp27-cp27m-macosx_10_6_intel.whl

Collecting pytz (from matplotlib)

  Downloading http://mirrors.aliyun.com/pypi/packages/dc/83/15f7833b70d3e067ca91467ca245bae0f6fe56ddc7451aa0dc5606b120f2/pytz-2018.4-py2.py3-none-any.whl (510kB)

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Requirement already satisfied: six>=1.10 in /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages (from matplotlib) (1.11.0)

Requirement already satisfied: backports.functools-lru-cache in ./Library/Python/2.7/lib/python/site-packages (from matplotlib) (1.5)

Requirement already satisfied: setuptools in /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages (from kiwisolver>=1.0.1->matplotlib) (28.8.0)

Installing collected packages: pyparsing, kiwisolver, cycler, subprocess32, pytz, matplotlib

Successfully installed cycler-0.10.0 kiwisolver-1.0.1 matplotlib-2.2.2 pyparsing-2.2.0 pytz-2018.4 subprocess32-3.5.1

可是我一进入python尝试import却总是不成功：



$python

Python 2.7.14 (v2.7.14:84471935ed, Sep 16 2017, 12:01:12)

[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin

Type "help", "copyright", "credits" or "license" for more information.

>>> import scipy

>>> import matplotlib

Traceback (most recent call last):

  File "<stdin>", line 1, in <module>

  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/__init__.py", line 131, in <module>

    from matplotlib.rcsetup import defaultParams, validate_backend, cycler

  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/rcsetup.py", line 29, in <module>

    from matplotlib.fontconfig_pattern import parse_fontconfig_pattern

  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/fontconfig_pattern.py", line 28, in <module>

    from backports.functools_lru_cache import lru_cache

ImportError: No module named functools_lru_cache

这究竟是为何？

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