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""" |
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AppVeyor will at least have few Pythons around so there's no point of implementing a bootstrapper in PowerShell. |
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This is a port of https://github.com/pypa/python-packaging-user-guide/blob/master/source/code/install.ps1 |
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with various fixes and improvements that just weren't feasible to implement in PowerShell. |
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""" |
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from __future__ import print_function |
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from os import environ |
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from os.path import exists |
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from subprocess import CalledProcessError |
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from subprocess import check_call |
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try: |
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from urllib.request import urlretrieve |
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except ImportError: |
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from urllib import urlretrieve |
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BASE_URL = "https://www.python.org/ftp/python/" |
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GET_PIP_URL = "https://bootstrap.pypa.io/get-pip.py" |
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GET_PIP_PATH = "C:\get-pip.py" |
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URLS = { |
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("2.7", "64"): BASE_URL + "2.7.10/python-2.7.10.amd64.msi", |
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("2.7", "32"): BASE_URL + "2.7.10/python-2.7.10.msi", |
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# NOTE: no .msi installer for 3.3.6 |
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("3.3", "64"): BASE_URL + "3.3.3/python-3.3.3.amd64.msi", |
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("3.3", "32"): BASE_URL + "3.3.3/python-3.3.3.msi", |
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("3.4", "64"): BASE_URL + "3.4.3/python-3.4.3.amd64.msi", |
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("3.4", "32"): BASE_URL + "3.4.3/python-3.4.3.msi", |
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("3.5", "64"): BASE_URL + "3.5.0/python-3.5.0-amd64.exe", |
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("3.5", "32"): BASE_URL + "3.5.0/python-3.5.0.exe", |
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} |
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INSTALL_CMD = { |
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# Commands are allowed to fail only if they are not the last command. Eg: uninstall (/x) allowed to fail. |
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"2.7": [["msiexec.exe", "/L*+!", "install.log", "/qn", "/x", "{path}"], |
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["msiexec.exe", "/L*+!", "install.log", "/qn", "/i", "{path}", "TARGETDIR={home}"]], |
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"3.3": [["msiexec.exe", "/L*+!", "install.log", "/qn", "/x", "{path}"], |
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["msiexec.exe", "/L*+!", "install.log", "/qn", "/i", "{path}", "TARGETDIR={home}"]], |
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"3.4": [["msiexec.exe", "/L*+!", "install.log", "/qn", "/x", "{path}"], |
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["msiexec.exe", "/L*+!", "install.log", "/qn", "/i", "{path}", "TARGETDIR={home}"]], |
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"3.5": [["{path}", "/quiet", "TargetDir={home}"]], |
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} |
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def download_file(url, path): |
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print("Downloading: {} (into {})".format(url, path)) |
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progress = [0, 0] |
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def report(count, size, total): |
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progress[0] = count * size |
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if progress[0] - progress[1] > 1000000: |
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progress[1] = progress[0] |
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print("Downloaded {:,}/{:,} ...".format(progress[1], total)) |
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dest, _ = urlretrieve(url, path, reporthook=report) |
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return dest |
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def install_python(version, arch, home): |
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print("Installing Python", version, "for", arch, "bit architecture to", home) |
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if exists(home): |
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return |
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path = download_python(version, arch) |
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print("Installing", path, "to", home) |
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success = False |
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for cmd in INSTALL_CMD[version]: |
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cmd = [part.format(home=home, path=path) for part in cmd] |
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print("Running:", " ".join(cmd)) |
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try: |
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check_call(cmd) |
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except CalledProcessError as exc: |
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print("Failed command", cmd, "with:", exc) |
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if exists("install.log"): |
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with open("install.log") as fh: |
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print(fh.read()) |
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else: |
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success = True |
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if success: |
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print("Installation complete!") |
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else: |
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print("Installation failed") |
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def download_python(version, arch): |
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for _ in range(3): |
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try: |
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return download_file(URLS[version, arch], "installer.exe") |
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except Exception as exc: |
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print("Failed to download:", exc) |
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print("Retrying ...") |
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def install_pip(home): |
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pip_path = home + "/Scripts/pip.exe" |
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python_path = home + "/python.exe" |
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if exists(pip_path): |
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print("pip already installed.") |
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else: |
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print("Installing pip...") |
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download_file(GET_PIP_URL, GET_PIP_PATH) |
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print("Executing:", python_path, GET_PIP_PATH) |
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check_call([python_path, GET_PIP_PATH]) |
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def install_packages(home, *packages): |
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cmd = [home + "/Scripts/pip.exe", "install"] |
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cmd.extend(packages) |
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check_call(cmd) |
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111
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112
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if __name__ == "__main__": |
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install_python(environ['PYTHON_VERSION'], environ['PYTHON_ARCH'], environ['PYTHON_HOME']) |
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install_pip(environ['PYTHON_HOME']) |
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install_packages(environ['PYTHON_HOME'], "setuptools>=18.0.1", "wheel", "tox", "virtualenv>=13.1.0") |
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Bengt /
microbar
