导入 matplotlib.pyplot - fc-list 挂起

Question

在更新我的 matplotlib 版本后，我遇到了与 import matplotlib.pyplot hangs 中描述的相同的问题 import matplotlib.pyplot as plt 在执行 fc-list 时挂起。

但是，the proposed solution 对我不起作用；在 ~/.matplotlib 中运行 fc-list 会占用 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）

为了更新我的 matplotlib 版本，我使用了：

sudo pip install matplotlib

如果我现在重新运行这个命令，我会得到 ​​p>

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 install --upgrade 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。此文件较旧（可追溯到 2013 年，因此比此更新尝试更早）。

问题：

1. 尽管有fontList.cache 文件，我是否应该运行fc-list，期待它在某个时候完成？
2. matplotlib 是否期望在其他位置找到 fontList.cache 文件？也许我的 matplotlib 安装/更新搞砸了一些路径 - 但是：matplotlib.get_cachedir() 返回/Users/MyName/.matplotlib
3. 文件名是否已更改？我应该重命名fontList.cache吗？
4. 我没有/usr/X11/lin目录了。但是fc-list还能进入死循环as suggested吗？

Answer 1

发布问题后，我无法重现问题。

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我怀疑（重新）运行

sudo pip install matplotlib

和/或

sudo pip install --upgrade matplotlib

在编写问题时（以捕获屏幕输出）修复了先前存在的问题。

fc-list 现在在 2 分钟内完成；尽管它没有创建新的fontList.cache 文件。

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我现在可以像以前一样拨打import matplotlib.pyplot as plt了。