25-07-2021
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docs/Synology/dsm6/python.md
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docs/Synology/dsm6/python.md
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# Installer pip et python 3
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DSM 6 fournit Python 2 (2.7.12) dans `/bin/python`
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### Installer Python 3:
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Il faut installer **python 3** et **pip** depuis <u>iPKGui</u>, soit les paquets:
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- python3
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- py3-pip
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- py3-setuptools
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L'installation se fait dans `/opt/bin/`
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```bash
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$ which python3
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/opt/bin/python3
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$ which pip3
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/opt/bin/pip3
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```
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Les modules sont ici:
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`/volume1/@optware/local/lib/python3.5/site-packages` (pip, setuptools)
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### Installer un module (mkdocs):
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!!! Pour des problèmes de droit, l'installation se fait avec —user
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PermissionError: [Errno 13] Permission denied: '/opt/local/lib/python3.5/site-packages/click-6.7.dist-info'
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```bash
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$ pip3 install --user mkdocs
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$ pip3 install --user klaus
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```
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Les modules sont installés ici:
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`/volume1/homes/bruno/.local/lib/python3.5/site-packages`
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L'applicatif est installé ici:
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`/volume1/homes/bruno/.local/bin/klaus`
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~/.local/lib/python3.5/site-packages/klaus/wsgi.py
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### Mettre à jour un module:
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```bash
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$ pip3 install --user --upgrade setuptools
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```
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### Erreur à la création d'un environnement virtuel:
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```bash
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bruno@DS916:~/venv $ python -m venv lychee
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Error: Command '['/volume1/homes/bruno/venv/lychee/bin/python', '-Im', 'ensurepip', '--upgrade', '--default-pip']' returned non-zero exit status 1.
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```
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Il faut le créer avec l'option `--without-pip`.
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```bash
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bruno@DS916:~/venv $ python3 -m venv --without-pip letchee
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bruno@DS916:~/venv $ source letchee/bin/activate
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(letchee) bruno@DS916:~/venv $ curl https://bootstrap.pypa.io/get-pip.py | python3
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% Total % Received % Xferd Average Speed Time Time Time Current
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Dload Upload Total Spent Left Speed
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100 1842k 100 1842k 0 0 4757k 0 --:--:-- --:--:-- --:--:-- 4773k
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Collecting pip
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Downloading pip-20.2.4-py2.py3-none-any.whl (1.5 MB)
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|████████████████████████████████| 1.5 MB 3.1 MB/s
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Collecting setuptools
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Downloading setuptools-50.3.2-py3-none-any.whl (785 kB)
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|████████████████████████████████| 785 kB 15.3 MB/s
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Collecting wheel
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Downloading wheel-0.35.1-py2.py3-none-any.whl (33 kB)
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Installing collected packages: pip, setuptools, wheel
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Successfully installed pip-20.2.4 setuptools-50.3.2 wheel-0.35.1
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(letchee) bruno@DS916:~/venv $ deactivate
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bruno@DS916:~/venv $ source letchee/bin/activate
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(letchee) bruno@DS916:~/venv $ l
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```
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```bash
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$ grep 'ssh' /var/log/messages
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$ tail -n100 /var/log/auth.log
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```
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