Python 导入matplotlib.pyplot-fc列表挂起

在执行

fc list

时，在更新matplotlib版本

import matplotlib.pyplot as plt

挂起后，我遇到与中所述相同的问题

然而，这对我来说并不适用；在

~/.matplotlib

中运行

fc list

，需要100%的CPU，并且不会在15分钟内完成

我有以下配置：

• Mac，运行OS 10.10.5（OS X Yosemite）
• Python 2.7.5
• matplotlib 1.4.3（是1.3.1，该版本没有问题）

要更新matplotlib版本，我使用了：

sudo pip install matplotlib

如果我现在重新运行这个命令，我会

Requirement already satisfied (use --upgrade to upgrade): matplotlib in /Library/Python/2.7/site-packages
Requirement already satisfied (use --upgrade to upgrade): numpy>=1.6 in /Library/Python/2.7/site-packages (from matplotlib)
Requirement already satisfied (use --upgrade to upgrade): pytz in /Library/Python/2.7/site-packages (from matplotlib)
Requirement already satisfied (use --upgrade to upgrade): pyparsing!=2.0.0,>=1.5.6 in /Library/Python/2.7/site-packages (from matplotlib)
Requirement already satisfied (use --upgrade to upgrade): python-dateutil in /Library/Python/2.7/site-packages (from matplotlib)
Requirement already satisfied (use --upgrade to upgrade): nose>=0.11.1 in /Library/Python/2.7/site-packages (from matplotlib)
Requirement already satisfied (use --upgrade to upgrade): six>=1.4 in /Library/Python/2.7/site-packages (from matplotlib)
Requirement already satisfied (use --upgrade to upgrade): mock in /Library/Python/2.7/site-packages (from matplotlib)
Requirement already satisfied (use --upgrade to upgrade): funcsigs in /Library/Python/2.7/site-packages (from mock->matplotlib)
Requirement already satisfied (use --upgrade to upgrade): pbr>=0.11 in /Library/Python/2.7/site-packages (from mock->matplotlib)

和

sudo pip安装--升级matplotlib

：

Requirement already up-to-date: matplotlib in /Library/Python/2.7/site-packages
Requirement already up-to-date: numpy>=1.6 in /Library/Python/2.7/site-packages (from matplotlib)
Requirement already up-to-date: pytz in /Library/Python/2.7/site-packages (from matplotlib)
Requirement already up-to-date: pyparsing!=2.0.0,>=1.5.6 in /Library/Python/2.7/site-packages (from matplotlib)
Requirement already up-to-date: python-dateutil in /Library/Python/2.7/site-packages (from matplotlib)
Requirement already up-to-date: nose>=0.11.1 in /Library/Python/2.7/site-packages (from matplotlib)
Requirement already up-to-date: six>=1.4 in /Library/Python/2.7/site-packages (from matplotlib)
Requirement already up-to-date: mock in /Library/Python/2.7/site-packages (from matplotlib)
Requirement already up-to-date: funcsigs in /Library/Python/2.7/site-packages (from mock->matplotlib)
Requirement already up-to-date: pbr>=0.11 in /Library/Python/2.7/site-packages (from mock->matplotlib)

我在

~/.matplotlib

中有一个

fontList.cache

文件。此文件很旧（可追溯到2013年，因此比此更新尝试更旧）

问题:

尽管有

fontList.cache

文件，我是否应该运行

fc list

，期望它在某个时候完成

matplotlib是否希望在其他位置找到

fontList.cache

文件？也许我的matplotlib安装/更新弄乱了一些路径-但是：返回

/Users/MyName/.matplotlib

文件名改变了吗？我是否应该重命名

fontList.cache

我不再有

/usr/X11/lin

目录。然而，

fc list

是否仍会进入无限循环

---

发布问题后，我无法重现该问题

---

我怀疑（重新）运行

和/或

sudo pip install --upgrade matplotlib

在编写问题（捕获屏幕输出）时，修复了以前存在的问题

fc列表

现在在2分钟内完成；尽管它没有创建新的

fontList.cache

文件

---

---

我现在可以像以前一样调用

import matplotlib.pyplot as plt

。

鉴于我无法重现我自己的问题，如果我们觉得这里的Q/A对对对未来用户没有帮助，我将问题留给VtC社区解决。我也遇到了这个问题，但仅仅是等待导致程序最终终止。然后在第二次执行时，它很快就起作用了。我认为这是在建立某种字体缓存，只需要做一次。

sudo pip install --upgrade matplotlib