[Dynamo += Python] Installation automatisé de Package CPython3

 

Installer des packages CPython3 directement depuis un script Dynamo 💡

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L'installation manuelle de Package pour le moteur CPython3 se fait en suivant ce guide :

https://github.com/DynamoDS/Dynamo/wiki/Customizing-Dynamo%27s-Python-3-installation

Cependant, il est possible d'automatiser tout cela directement depuis Dynamo (très utile si vous voulez déployer sur votre réseau les mêmes packages).

Le script Python prend en entrée une liste de noms de packages (attention à la case).

Vous retrouverez la liste des packages ainsi que le nom à passer dans la commande pip sur ce site :

https://pypi.org/

Exemple avec numpy

exemple de nom à copier-coller dans la liste en entrée

le code Python

Credit Ekko Nap pour l'idée et le code d'origine

# More info here
# https://github-wiki-see.page/m/DynamoDS/Dynamo/wiki/Customizing-Dynamo%27s-Python-3-installation
import sys
import clr
import System
import re
print('\n'.join(sys.path))
pyEngineName = sys.implementation.name 

clr.AddReference("System.Windows.Forms")
import System.Windows.Forms
from System.Windows.Forms import MessageBox, MessageBoxButtons, MessageBoxIcon

from System.Reflection import Assembly
dynamo = Assembly.Load('DynamoCore')
dynamo_version = str(dynamo.GetName().Version)
dynamo_version = tuple(int(x) for x in dynamo_version.split("."))
print('dynamo_version', dynamo_version)
init_setup = False
if pyEngineName != "ironpython" and dynamo_version > (2,8,0,0):
    #reDir = System.IO.DirectoryInfo(re.__file__)
    #path_py3_lib = reDir.Parent.Parent.FullName
    clr.AddReference('Python.Included')
    import Python.Included as pyInc
    path_py3_lib = pyInc.Installer.EmbeddedPythonHome
    #sys.path.append(path_py3_lib + r'\Lib\site-packages')
    import platform, os, subprocess, importlib.util
    from System import Environment
    from System.Net import WebClient
    #
    # get paths
    assert os.path.isdir(path_py3_lib)
    pipDirPath = os.path.join(path_py3_lib, 'Scripts')
    pipfilePath = pipDirPath + "\\pip"
    get_pip_path = os.path.join(path_py3_lib, 'get-pip.py')
    site_packagepath = os.path.join(path_py3_lib, 'Lib\site-packages')
    #assert os.path.isdir(site_packagepath), "Error folder  {} not found".format(site_packagepath)
    #
    if not os.path.isfile(get_pip_path):
        client = WebClient()
        client.DownloadFile('https://bootstrap.pypa.io/get-pip.py', get_pip_path)
    filepy_pth = f'python{sys.version_info.major}{sys.version_info.minor}._pth'
    pthFilePath = os.path.join(path_py3_lib, filepy_pth)
    assert os.path.isfile(pthFilePath), "Error file {} not found".format(pthFilePath)
    
    with open(pthFilePath, 'r+') as f:
        lines = f.readlines()
        if re.match(r'#import site', lines[-1]) is not None:
            lines[-1] = re.sub(r'#', '', lines[-1])
            f.writelines(lines)
    
    if not os.path.isdir(pipDirPath):
        #print(f'installing pip in local Python environment: {path_py3_lib}')
        print('installing pip in local Python environment: {}'.format(path_py3_lib))
        subprocess.Popen(["python", get_pip_path])
        # try to update pip
        try:
            #subprocess.run(['python', '-m', pipfilePath, 'install', '--upgrade pip'],  cwd = path_py3_lib)
            subprocess.Popen(["python", '-m', pipfilePath, 'install', '--upgrade pip'],  cwd = path_py3_lib)
        except Exception as ex:
            print(str(ex))
        init_setup = True
        MessageBox.Show("Initialization in Progress...\nWhen installation finished, close Dynamo and relaunch this script to install packages", "Initialization In Progress...", MessageBoxButtons.OK, MessageBoxIcon.Warning)
        raise Exception("close Dynamo and relaunch this script to install packages")
    else: 
        print('pip was already installed for this local Python environment')
        init_setup = False
    #
    installPackages = IN[0]
    if installPackages and not init_setup:
        sys.path.append(site_packagepath)
        for packageName in installPackages:
            spec = importlib.util.find_spec( packageName )
            if spec is None: 
                try:
                    subprocess.run([pipfilePath, 'install', '--target='+ site_packagepath, packageName], cwd = path_py3_lib)
                    print('{} succesfully installed'.format(packageName))
                except Exception as ex:
                    #print(f'error while installing {packageName}')
                    print('error while installing {}'.format(packageName))
                    print(str(ex))
            else:
                #print(f"package {packageName} is already installed")
                print("package {} is already installed".format(packageName))
                
        # check result
        if False:
            import numpy as np
            import pandas as pd
        MessageBox.Show("Installation et Configuration Python terminé avec succès!", "Installation Python", MessageBoxButtons.OK, MessageBoxIcon.Information)
    
elif pyEngineName == "ironpython" and dynamo_version > (2,8,0,0):
    MessageBox.Show("Basculer ce noeud sur le moteur CPython3 puis relancer le script!", "Installation Python", MessageBoxButtons.OK, MessageBoxIcon.Warning)
    
else:
    MessageBox.Show("Installation et Configuration Python terminé avec succès!", "Installation Python", MessageBoxButtons.OK, MessageBoxIcon.Information)

Résultat