ImportError: No module named serial

M5stack シリーズのモジュールを使おうと思って、コードをコンパイルしたら怒られた。

code:log

File "/Users/username/Library/Arduino15/packages/m5stack/tools/esptool_py/3.0.0/esptool.py", line 39, in <module>

import serial

ImportError: No module named serial

環境

macOS Catalina 10.15.7

Arduino IDE 1.8.13

M5Stack ボードマネージャ 1.0.5

直接関係ないと思うが、pyenvを使用していて、global環境にanaconda3-2019.03を設定している

解決策

おそらく現象はmac特有のもの

実際

パスを調べる

code:zsh

% python2

WARNING: Python 2.7 is not recommended.

This version is included in macOS for compatibility with legacy software.

Future versions of macOS will not include Python 2.7.

Instead, it is recommended that you transition to using 'python3' from within Terminal.

Python 2.7.16 (default, Jun 5 2020, 22:59:21)

[GCC 4.2.1 Compatible Apple LLVM 11.0.3 (clang-1103.0.29.20) (-macos10.15-objc- on darwin

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

>> import sys

>> print sys.path

'/Library/Python/2.7/site-packages/pip-1.5.6-py2.7.egg', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python27.zip', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-old', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload', '/Library/Python/2.7/site-packages', '/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python', '/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/PyObjC'

>> quit()

code:zsh

% sudo pip install --target /Library/Python/2.7/site-packages pyserial

Password:

The directory '/Users/username/Library/Caches/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.

The directory '/Users/username/Library/Caches/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.

Collecting pyserial

100% |████████████████████████████████| 92kB 463kB/s

Installing collected packages: pyserial

Successfully installed pyserial-3.5