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# -*- coding:utf-8 -*-
# ##### BEGIN GPL LICENSE BLOCK #####
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
# <pep8 compliant>
# ----------------------------------------------------------
# Author: Stephen Leger (s-leger)
#
# ----------------------------------------------------------
import bpy
import subprocess
import sys
PYPATH = sys.executable #bpy.app.binary_path_python
class Pip:
def __init__(self):
self._ensurepip()
@staticmethod
def _ensure_user_site_package():
import os
import site
import sys
site_package = site.getusersitepackages()
if not os.path.exists(site_package):
site_package = bpy.utils.user_resource('SCRIPTS', "site_package", create=True)
site.addsitedir(site_package)
if site_package not in sys.path:
sys.path.append(site_package)
'''
@staticmethod
def _ensure_user_site_package():
import os
import site
import sys
site_package = site.getusersitepackages()
if os.path.exists(site_package):
if site_package not in sys.path:
sys.path.append(site_package)
else:
site_package = bpy.utils.user_resource('SCRIPTS', "site_package", create=True)
site.addsitedir(site_package)
'''
def _cmd(self, action, options, module):
if options is not None and "--user" in options:
self._ensure_user_site_package()
cmd = [PYPATH, "-m", "pip", action]
if options is not None:
cmd.extend(options.split(" "))
cmd.append(module)
return self._run(cmd)
def _popen(self, cmd):
popen = subprocess.Popen(cmd, stdout=subprocess.PIPE, universal_newlines=True)
for stdout_line in iter(popen.stdout.readline, ""):
yield stdout_line
popen.stdout.close()
popen.wait()
def _run(self, cmd):
res = False
status = ""
for line in self._popen(cmd):
if "ERROR:" in line:
status = line.strip()
if "Error:" in line:
status = line.strip()
print(line)
if "Successfully" in line:
status = line.strip()
res = True
return res, status
def _ensurepip(self):
pip_not_found = False
try:
import pip
except ImportError:
pip_not_found = True
pass
if pip_not_found:
self._run([PYPATH, "-m", "ensurepip", "--default-pip"])
@staticmethod
def upgrade_pip():
return Pip()._cmd("install", "--upgrade", "pip")
@staticmethod
def uninstall(module, options=None):
"""
:param module: string module name with requirements see:[1]
:param options: string command line options see:[2]
:return: True on uninstall, False if already removed, raise on Error
[1] https://pip.pypa.io/en/stable/reference/pip_install/#id29
[2] https://pip.pypa.io/en/stable/reference/pip_install/#id47
"""
if options is None or options.strip() == "":
# force confirm
options = "-y"
return Pip()._cmd("uninstall", options, module)
@staticmethod
def install(module, options=None):
"""
:param module: string module name with requirements see:[1]
:param options: string command line options see:[2]
:return: True on install, False if already there, raise on Error
[1] https://pip.pypa.io/en/stable/reference/pip_install/#id29
[2] https://pip.pypa.io/en/stable/reference/pip_install/#id47
"""
if options is None or options.strip() == "":
# store in user writable directory, use wheel, without deps
options = "--user --only-binary all --no-deps"
return Pip()._cmd("install", options, module)
@staticmethod
def blender_version():
"""
:return: blender version tuple
"""
return bpy.app.version
@staticmethod
def python_version():
"""
:return: python version object
"""
import sys
# version.major, version.minor, version.micro
return sys.version_info
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