我尝试在 Linux Mint 上安装 Mu Editor 的 python 包时遇到以下错误：
$ pip3 install qscintilla==2.11.4
Collecting qscintilla==2.11.4
Could not find a version that satisfies the
requirement qscintilla==2.11.4 (from versions:
2.9.4, 2.10, 2.10.1, 2.10.2, 2.10.3, 2.10.4,
2.10.7, 2.10.8, 2.11, 2.11.1, 2.11.2, 2.11.3)
No matching distribution found for qscintilla==2.11.4
任何想法有什么问题吗？
更新：
我重新安装了整个 mu-editor，在尝试安装时遇到了这个错误；
Collecting mu-editor
Cache entry deserialization failed, entry ignored
Using cached https://files.pythonhosted.org/packages/fa/2f/6f7eb7e836a528d6959e5c79491d90faef2df7a78e9d953b84451551a98e/mu_editor-1.0.3-py3-none-any.whl
Collecting guizero>=1.1.0 (from mu-editor)
Using cached https://files.pythonhosted.org/packages/b0/eb/c58693afb94bc1e5f5f77d0f8e6b4e6dc84006fbfcb66b10fb81aef39f69/guizero-1.1.0-py3-none-any.whl
Collecting PyQtChart==5.14.0 (from mu-editor)
Using cached https://files.pythonhosted.org/packages/c8/6e/08e68bb5c3c64fbb56f1755c0b4748bb82775fa1b7c9fbaa61572eeaa76a/PyQtChart-5.14.0.tar.gz
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/usr/lib/python3.6/tokenize.py", line 452, in open
buffer = _builtin_open(filename, 'rb')
FileNotFoundError: [Errno 2] No such file or directory: '/tmp/pip-build-5lqnol01/PyQtChart/setup.py'
----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-5lqnol01/PyQtChart/