6 examples of 'create conda environment with specific python version' in Python

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def create_env(self, py, args):
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    if py:
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        args = ["--python=%s" % py] + args
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    subprocess.check_call(
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        [sys.executable, '-m', 'virtualenv', str(self.root)] + args,
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    )

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def create_virtualenv(self, no_site_packages=True):
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    """Creates the virtual environment and installs PIP.
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    Creates the virtual environment and installs PIP only into the
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    virtual environment.
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    """
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    if not os.path.isdir(self.venv):
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        print 'Creating venv...',
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        if no_site_packages:
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            self.run_command(['virtualenv', '-q', '--no-site-packages',
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                             self.venv])
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        else:
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            self.run_command(['virtualenv', '-q', self.venv])
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        print 'done.'
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        print 'Installing pip in venv...',
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        if not self.run_command(['tools/with_venv.sh', 'easy_install',
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                                'pip>1.0']).strip():
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            self.die("Failed to install pip.")
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        print 'done.'
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    else:
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        print "venv already exists..."
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        pass

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def create_virtualenv():
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    "Check if a virtual env existis, if not, create one"
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    sys.stdout.write("Creation of Virtualenv starts.\n")    
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    if 'VIRTUAL_ENV' not in os.environ:
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        if not os.access(VIRTUAL_ENV_NAME,os.F_OK):
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            sys.stdout.write('Virtualenv \"%s\" does not exist yet and will now be created.\n' %VIRTUAL_ENV_NAME)
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            #subprocess.call(["virtualenv", VIRTUAL_ENV_NAME, "--no-site-packages"])
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            subprocess.call(['virtualenv', VIRTUAL_ENV_NAME])  
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            sys.stdout.write('Virtualenv \"%s\" is now created\n' %VIRTUAL_ENV_NAME)
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        else:
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            sys.stdout.write('Virtualenv \"%s\" already existed and will not be created.\n' %VIRTUAL_ENV_NAME)
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    else:
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         sys.stdout.write('Virtualenv \"%s\" already existed and will not be created.\n' %VIRTUAL_ENV_NAME)

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def test_create_uses_bash_and_sources_virtualenvwrapper(self, mock_subprocess, virtualenvs_folder):
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    v = Virtualenv("domain.com", "3.6")
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    v.create(nuke=False)
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    args, kwargs = mock_subprocess.check_call.call_args
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    command_list = args[0]
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    assert command_list[:2] == ["bash", "-c"]
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    assert command_list[2].startswith("source virtualenvwrapper.sh && mkvirtualenv")

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def activate_virtualenv(venv):
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    """Activate a virtualenv in the current Python process."""
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    with open(venv['activate_this']) as f:
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        exec(f.read(), dict(__file__=venv['activate_this']))

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@property
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def python(self):
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    return self.get_binary('python')