gevent和pip的安装包

#!/usr/bin/env python # # Hi There! # You may be wondering what this giant blob of binary data here is, you might # even be worried that we're up to something nefarious (good for you for being # paranoid!). This is a base85 encoding of a zip file, this zip file contains # an entire copy of pip. # # Pip is a thing that installs packages, pip itself is a package that someone # might want to install, especially if they're looking to run this get-pip.py # script. Pip has a lot of code to deal with the security of installing # packages, various edge cases on various platforms, and other such sort of # "tribal knowledge" that has been encoded in its code base. Because of this # we basically include an entire copy of pip inside this blob. We do this # because the alternatives are attempt to implement a "minipip" that probably # doesn't do things correctly and has weird edge cases, or compress pip itself # down into a single file. # # If you're wondering how this is created, it is using an invoke task located # in tasks/generate.py called "installer". It can be invoked by using # ``invoke generate.installer``. import os.path import pkgutil import shutil import sys import struct import tempfile # Useful for very coarse version differentiation. PY2 = sys.version_info[0] == 2 PY3 = sys.version_info[0] == 3 if PY3: iterbytes = iter else: def iterbytes(buf): return (ord(byte) for byte in buf) try: from base64 import b85decode except ImportError: _b85alphabet = (b"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ" b"abcdefghijklmnopqrstuvwxyz!#$%&()*+-;<=>?@^_`{|}~") def b85decode(b): _b85dec = [None] * 256 for i, c in enumerate(iterbytes(_b85alphabet)): _b85dec[c] = i padding = (-len(b)) % 5 b = b + b'~' * padding out = [] packI = struct.Struct('!I').pack for i in range(0, len(b), 5): chunk = b[i:i + 5] acc = 0 try: for c in iterbytes(chunk): acc = acc * 85 + _b85dec[c] except TypeError: for j, c in enumerate(iterbytes(chunk)): if _b85dec[c] is None: raise ValueError( 'bad base85 character at position %d' % (i + j) ) raise try: out.append(packI(acc)) except struct.error: raise ValueError('base85 overflow in hunk starting at byte %d' % i) result = b''.join(out) if padding: result = result[:-padding] return result def bootstrap(tmpdir=None): # Import pip so we can use it to install pip and maybe setuptools too import pip from pip.commands.install import InstallCommand # Wrapper to provide default certificate with the lowest priority class CertInstallCommand(InstallCommand): def parse_args(self, args): # If cert isn't specified in config or environment, we provide our # own certificate through defaults. # This allows user to specify custom cert anywhere one likes: # config, environment variable or argv. if not self.parser.get_default_values().cert: self.parser.defaults["cert"] = cert_path # calculated below return super(CertInstallCommand, self).parse_args(args) pip.commands_dict["install"] = CertInstallCommand # We always want to install pip packages = ["pip"] # Check if the user has requested us not to install setuptools if "--no-setuptools" in sys.argv or os.environ.get("PIP_NO_SETUPTOOLS"): args = [x for x in sys.argv[1:] if x != "--no-setuptools"] else: args = sys.argv[1:] # We want to see if setuptools is available before attempting to # install it try: import setuptools # noqa except ImportError: packages += ["setuptools"] # Check if the user has requested us not to install wheel if "--no-wheel" in args or os.environ.get("PIP_NO_WHEEL"): args = [x for x in args if x != "--no-wheel"] else: # We want to see if wheel is available before attempting to install it. try: import wheel # noqa except ImportError: args += ["wheel"] delete_tmpdir = False try: # Create a temporary directory to act as a working directory if we were # not given one. if tmpdir is None: tmpdir = tempfile.mkdtemp() delete_tmpdir = True # We need to extract the SSL certificates from requests so that they # can be passed to --cert cert_path = os.path.join(tmpdir, "cacert.pem") with open(cert_path, "wb") as cert: cert.write(pkgutil.get_data("pip._vendor.requests", "cacert.pem")) # Execute the included pip and use it to install the latest pip and # setuptools from PyPI sys.exit(pip.main(["install", "--upgrade"] + packages + args)) finally: # Remove our temporary directory if delete_tmpdir and tmpdir: shutil.rmtree(tmpdir, ignore_errors=True) def main(): tmpdir = None try: # Create a temporary working directory tmpdir = tempfile.mkdtemp() # Unpack the zipfile into the temporary directory pip_zip = os.path.join(tmpdir, "pip.zip") with open(pip_zip, "wb") as fp: fp.write(b85decode(DATA.replace(b"\n", b""))) # Add the zipfile to sys.path so that we can import it sys.path.insert(0, pip_zip) # Run the bootstrap bootstrap(tmpdir=tmpdir) finally: # Clean up our temporary working directory if tmpdir: shutil.rmtree(tmpdir, ignore_errors=True) DATA = b""" P)h>@6aWAK2moA}-bThIgA0}o006Ei000jF003}la4%n9X>MtBUtcb8d7WBuZ`-yK|KFd2brwikWo_B ;u!rn<*pQ}JfvyeG_Vod&A;=bObCD&Dl#;mHzWcj7k|JfvSvC!;CGmK7Jl_3ycgo4LuUaL)T8i>3Uf! 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