diff --git a/setup.py b/setup.py
index 5929672..bfb15e7 100755
--- a/setup.py
+++ b/setup.py
@@ -1,7 +1,18 @@
 # -*- coding: utf-8 -*-
 from __future__ import print_function
 
+import sys
+import os
+import platform
+import re
+import zipfile
+import shutil
+import struct
 import codecs
+import subprocess
+import hashlib
+from collections import namedtuple
+from functools import partial
 try:
     from io import BytesIO
 except:
@@ -9,26 +20,29 @@ except:
         from cStringIO import StringIO as BytesIO
     except:
         from StringIO import StringIO as BytesIO
-import os
-import platform
-import re
-from setuptools import setup
-from setuptools.command.build_ext import build_ext
-from setuptools.extension import Extension
-import shutil
-import struct
-import subprocess
-import sys
 try:
     from urllib.request import urlopen, Request
 except:
     from urllib2 import urlopen, Request
 try:
-    import xmlrpclib
-except ImportError:
-    import xmlrpc.client as xmlrpclib
-import zipfile
+    from urllib.parse import urljoin, urlparse
+except:
+    from urlparse import urljoin, urlparse
+try:
+    from html.parser import HTMLParser
+except:
+    from HTMLParser import HTMLParser
 
+from setuptools import setup
+from setuptools.command.build_ext import build_ext
+from setuptools.extension import Extension
+
+
+DEFAULT_INDEX_URL = "https://pypi.org/simple/"
+
+python_version = sys.version_info[0:2]
+python_major_version = python_version[0]
+PY2 = python_major_version == 2
 
 package_dir = os.path.dirname(os.path.realpath(__file__))
 pkg_info = os.path.join(package_dir, "PKG-INFO")
@@ -44,18 +58,11 @@ else:
     frida_extension = os.environ['FRIDA_EXTENSION']
 frida_major_version = int(frida_version.split(".")[0])
 
+index_url_pip_configs = ("global.index-url", "global.extra-index-url")
 
-class UrllibTransport(xmlrpclib.Transport):
-    def __init__(self, *args, **kwargs):
-        xmlrpclib.Transport.__init__(self, *args, **kwargs)
-
-    def request(self, host, handler, request_body, verbose=0):
-        self.verbose = verbose
-        scheme = "https"
-        url = "%(scheme)s://%(host)s%(handler)s" % locals()
-        req = Request(url, data=request_body, headers={'Content-Type': 'text/xml'})
-        fp = urlopen(req)
-        return self.parse_response(fp)
+Tag = namedtuple("Tag", ["tagname", "attrs"])
+ParsedUrlInfo = namedtuple("ParsedUrlInfo",
+                           ["url", "filename", "major", "minor", "micro"])
 
 
 class FridaPrebuiltExt(build_ext):
@@ -69,8 +76,6 @@ class FridaPrebuiltExt(build_ext):
             pass
 
         if in_source_package:
-            python_version = sys.version_info[0:2]
-            python_major_version = python_version[0]
             system = platform.system()
             arch = struct.calcsize('P') * 8
             if system == 'Windows':
@@ -106,37 +111,46 @@ class FridaPrebuiltExt(build_ext):
                 print("prebuilt extension not found in home directory, will try downloading it")
 
                 print("querying pypi for available prebuilds")
-                client = xmlrpclib.ServerProxy("https://pypi.python.org/pypi", transport=UrllibTransport())
-                urls = client.release_urls("frida", frida_version)
+                # index_url is a url compatible with PEP 503
+                index_url = get_index_url().strip()
+                frida_url = urljoin(index_url, "frida/")  # slash is necessary here
+                timeout = 20
+                errmsg = (
+                    "unable to download it within {} seconds; "
+                    "please download it manually to {}"
+                ).format("{}", egg_path)
 
-                urls = [url for url in urls if url['python_version'] != 'source']
+                print("downloading package list from", frida_url)
+                try:
+                    links_html = urlopen(frida_url, timeout=timeout).read().decode("utf-8")
+                except Exception:
+                    print(errmsg.format(timeout))
+                    raise
 
-                if python_major_version >= 3:
-                    urls = [url for url in urls if parse_version(url['python_version'])[0] == python_major_version]
-                else:
-                    urls = [url for url in urls if parse_version(url['python_version']) == python_version]
-
-                os_suffix = "-{}.egg".format(os_version)
-                urls = [url for url in urls if url['filename'].endswith(os_suffix)]
+                parser = PEP503PageParser("frida", frida_version, os_version)
+                parser.feed(links_html)
+                urls = [url for url in parser.urls if url.major == python_major_version]
 
                 if len(urls) == 0:
                     raise NotImplementedError("could not find prebuilt Frida extension; "
                                               "prebuilds only provided for Python 2.7 and 3.4+")
 
                 url = urls[0]
-                egg_url = url['url']
+                egg_url = urljoin(frida_url, url.url)
 
                 try:
                     print("downloading prebuilt extension from", egg_url)
                     timeout = 120  # We'll assume the user has at least 200 kB/s transfer speed.
                     egg_data = urlopen(egg_url, timeout=timeout).read()
-                except Exception as e:
-                    message = "unable to download it within 120 seconds; please download it manually to {}"
-                    print(message.format(egg_path))
-                    raise e
+                except Exception:
+                    print(errmsg.format(timeout))
+                    raise
 
             egg_file = BytesIO(egg_data)
 
+            print("checking hash")
+            check_pep503_hash(egg_file, egg_url)
+
             print("extracting prebuilt extension")
             egg_zip = zipfile.ZipFile(egg_file)
             extension_member = [info for info in egg_zip.infolist() if info.filename.endswith(target_extension)][0]
@@ -150,51 +164,148 @@ class FridaPrebuiltExt(build_ext):
             shutil.copyfile(frida_extension, target)
 
 
-def parse_version(version):
-    return tuple(map(int, version.split(".")))
+def get_index_url():
+    """get `index-url` from environment or pip
+    Use FRIDA_INDEX_URL environment variable to customize index-url compatible
+    with PEP 503.
+    """
+    index_url = os.environ.get("FRIDA_INDEX_URL", None)
+    if index_url is not None:
+        return index_url
+
+    for config_name in index_url_pip_configs:
+        try:
+            index_url = get_index_url_from_pip(config_name)
+        except (subprocess.CalledProcessError, OSError):
+            pass
+        else:
+            return index_url
+
+    print("using default index URL: {}".format(DEFAULT_INDEX_URL))
+    return DEFAULT_INDEX_URL
 
 
-setup(
-    name="frida",
-    version=frida_version,
-    description="Dynamic instrumentation toolkit for developers, reverse-engineers, and security researchers",
-    long_description=long_description,
-    long_description_content_type="text/markdown",
-    author="Frida Developers",
-    author_email="oleavr@frida.re",
-    url="https://frida.re",
-    install_requires=["setuptools"],
-    license="wxWindows Library Licence, Version 3.1",
-    keywords="frida debugger dynamic instrumentation inject javascript windows macos linux ios iphone ipad android qnx",
-    classifiers=[
-        "Development Status :: 5 - Production/Stable",
-        "Environment :: Console",
-        "Environment :: MacOS X",
-        "Environment :: Win32 (MS Windows)",
-        "Intended Audience :: Developers",
-        "Intended Audience :: Science/Research",
-        "License :: OSI Approved",
-        "Natural Language :: English",
-        "Operating System :: MacOS :: MacOS X",
-        "Operating System :: Microsoft :: Windows",
-        "Operating System :: POSIX :: Linux",
-        "Programming Language :: Python :: 2",
-        "Programming Language :: Python :: 2.7",
-        "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.4",
-        "Programming Language :: Python :: 3.5",
-        "Programming Language :: Python :: 3.6",
-        "Programming Language :: Python :: 3.7",
-        "Programming Language :: Python :: 3.8",
-        "Programming Language :: Python :: Implementation :: CPython",
-        "Programming Language :: JavaScript",
-        "Topic :: Software Development :: Debuggers",
-        "Topic :: Software Development :: Libraries :: Python Modules"
-    ],
-    packages=['frida'],
-    ext_modules=[Extension('_frida', [])],
-    cmdclass={
-        'build_ext': FridaPrebuiltExt
-    },
-    zip_safe=False
-)
+def get_index_url_from_pip(config_name):
+    assert config_name in index_url_pip_configs
+
+    return subprocess.check_output([sys.executable, "-m", "pip", "config", "get", config_name],
+                                   stderr=subprocess.PIPE)
+
+
+class PEP503PageParser(HTMLParser):
+    def __init__(self, name, version, os_version):
+        HTMLParser.__init__(self)
+        filename_pattern = (
+            r"^{}\-{}\-py(?P<major>\d+)\.(?P<minor>\d+)(\.(?P<micro>\d+))?-{}.egg$"
+        ).format(*map(re.escape, [name, version, os_version]))
+        if PY2:
+            filename_pattern = filename_pattern.decode("utf-8")
+        self._filename_pattern = re.compile(filename_pattern)
+
+    def reset(self):
+        HTMLParser.reset(self)
+        self._path = []
+        self.urls = []
+
+    def handle_starttag(self, tag, attrs):
+        self._path.append(Tag(tag, dict(attrs)))
+
+    def handle_endtag(self, tag):
+        if tag == u"a":
+            while True:
+                if self._path.pop().tagname == tag:
+                    break
+        else:
+            if len(self._path) > 0 and self._path[-1].tagname == tag:
+                self._path.pop()
+
+    def handle_data(self, data):
+        if not (len(self._path) > 0
+                and self._path[-1].tagname == u"a"
+                and self._path[-1].attrs.get("href")):
+            return
+
+        match = self._filename_pattern.match(data)
+        if match is not None:
+            self.urls.append(ParsedUrlInfo(
+                self._path[-1].attrs["href"],
+                data,
+                *map(
+                    lambda g: int(g) if g else None,
+                    map(match.group, ["major", "minor", "micro"])
+                )
+            ))
+
+
+def check_pep503_hash(bytes_io, url):
+    parse_result = urlparse(url)
+    fragment = parse_result.fragment
+    if fragment == "":
+        return
+
+    hashname, hashvalue = fragment.split("=")
+    if hashname not in {"md5", "sha1", "sha224", "sha256", "sha348", "sha512"}:
+        raise ValueError("Unsupported hash algorithm: {}, hashvalue={}".format(
+            hashname, hashvalue,
+        ))
+
+    h = hashlib.new(hashname)
+    for block in iter(partial(bytes_io.read, 4096), b""):  # iterate until EOF
+        h.update(block)
+    digest = h.hexdigest()
+    bytes_io.seek(0)  # reset offset
+
+    if digest == hashvalue:
+        return
+    else:
+        raise ValueError(
+            "`{}` hash checking failed! Expected: {}, but got: {}".format(
+                hashname, hashvalue, digest)
+        )
+
+
+if __name__ == "__main__":
+    setup(
+        name="frida",
+        version=frida_version,
+        description="Dynamic instrumentation toolkit for developers, reverse-engineers, and security researchers",
+        long_description=long_description,
+        long_description_content_type="text/markdown",
+        author="Frida Developers",
+        author_email="oleavr@frida.re",
+        url="https://frida.re",
+        install_requires=["setuptools"],
+        license="wxWindows Library Licence, Version 3.1",
+        keywords="frida debugger dynamic instrumentation inject javascript windows macos linux ios iphone ipad android qnx",
+        classifiers=[
+            "Development Status :: 5 - Production/Stable",
+            "Environment :: Console",
+            "Environment :: MacOS X",
+            "Environment :: Win32 (MS Windows)",
+            "Intended Audience :: Developers",
+            "Intended Audience :: Science/Research",
+            "License :: OSI Approved",
+            "Natural Language :: English",
+            "Operating System :: MacOS :: MacOS X",
+            "Operating System :: Microsoft :: Windows",
+            "Operating System :: POSIX :: Linux",
+            "Programming Language :: Python :: 2",
+            "Programming Language :: Python :: 2.7",
+            "Programming Language :: Python :: 3",
+            "Programming Language :: Python :: 3.4",
+            "Programming Language :: Python :: 3.5",
+            "Programming Language :: Python :: 3.6",
+            "Programming Language :: Python :: 3.7",
+            "Programming Language :: Python :: 3.8",
+            "Programming Language :: Python :: Implementation :: CPython",
+            "Programming Language :: JavaScript",
+            "Topic :: Software Development :: Debuggers",
+            "Topic :: Software Development :: Libraries :: Python Modules"
+        ],
+        packages=['frida'],
+        ext_modules=[Extension('_frida', [])],
+        cmdclass={
+            'build_ext': FridaPrebuiltExt
+        },
+        zip_safe=False
+    )
diff --git a/tests/test_pep503_page_parser.py b/tests/test_pep503_page_parser.py
new file mode 100644
index 0000000..b19b65a
--- /dev/null
+++ b/tests/test_pep503_page_parser.py
@@ -0,0 +1,211 @@
+# coding: utf-8
+
+import sys
+try:
+    import unittest2 as unittest
+except:
+    import unittest
+
+import setup
+
+
+py_major_version = sys.version_info[0]
+htmls = []
+cases = []
+
+
+html = (
+    '<!DOCTYPE html>\n<html>\n  <head>\n    <title>Links for frida</title>\n '
+    ' </head>\n  <body>\n    <h1>Links for frida</h1>\n    <a href="../../pac'
+    'kages/5d/80/3b140c5998df9d81e40169f188a2347b6c705156a2b556ff308e2f8b7e0a'
+    '/frida-1.4.1-py2.6-macosx-10.9-intel.egg#sha256=eef92210084ef083b34f8972'
+    '078550c6ef45255e444905f95495792c7f709546">frida-1.4.1-py2.6-macosx-10.9-'
+    'intel.egg</a><br/>\n<a href="../../packages/4e/ca/ee40ef1d5013300a77152f'
+    'f0687caedc3b5ea1f786bf3e0b778de5fc0b8a/frida-9.1.9.tar.gz#sha256=d215884'
+    '4cc20cd3e2f8d2cd95f90449f0c27d051d9868706c1eda5d357eb86d7">frida-9.1.9.t'
+    'ar.gz</a><br/>\n  </body>\n</html>\n<!--SERIAL 11362971-->'
+)
+htmls.append(html)
+cases.extend([
+    (
+        setup.PEP503PageParser("frida", "15.1.1", "win-amd64"),
+        html,
+        []
+    ),
+    (
+        setup.PEP503PageParser("frida", "1.4.1", "macosx-10.9-intel"),
+        html,
+        [
+            setup.ParsedUrlInfo(
+                url='../../packages/5d/80/3b140c5998df9d81e40169f188a2347b6c705156a2b556ff308e2f8b7e0a/frida-1.4.1-py2.6-macosx-10.9-intel.egg#sha256=eef92210084ef083b34f8972078550c6ef45255e444905f95495792c7f709546',
+                filename='frida-1.4.1-py2.6-macosx-10.9-intel.egg',
+                major=2, minor=6, micro=None
+            )
+        ]
+    ),
+    (
+        setup.PEP503PageParser("frida", "1.4.1", "macosx-11.0-arm64"),
+        html,
+        []
+    ),
+])
+
+html = (
+    '<a href="../../packages/e3/21/da75f6207f76750799d68938707a74d46512e666293eb550247bf5314613/frida-15.0.7-py2.7-linux-i686.egg#sha256=444246bad3b2222efec301e96c2d6ac5da039d41acd655f6d5b6e548637cae09">frida-15.0.7-py2.7-linux-i686.egg</a><br/>'
+    '<a href="../../packages/27/98/751c293b3f246692f3f70ee33c8699ff19f9ded770ae2557ac5641b3456c/frida-15.0.7-py2.7-linux-x86_64.egg#sha256=85547f36d30520b4ecc21bdabd6d6f458367558c5eae12af201bab41451b79c1">frida-15.0.7-py2.7-linux-x86_64.egg</a><br/>'
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+    '<a href="../../packages/d5/05/640d0544779eb011dfc5cea9216eaa617ec2436f31e949f33cad9e5de349/frida-15.0.8-py2.7-macosx-10.9-x86_64.egg#sha256=3ab213b7ae45e45fcb3fbb0d7618568914417400a4248b347f3815c322268232">frida-15.0.8-py2.7-macosx-10.9-x86_64.egg</a><br/>'
+    '<a href="../../packages/d1/20/a65170d6a898541839acb03a16d1dd26499928c937350078765fe1e4beb3/frida-15.0.8-py2.7-macosx-11.0-fat64.egg#sha256=f9e58ff7f6d53640a991d3e77711b0095927103d7bdfef55268b58091938f72e">frida-15.0.8-py2.7-macosx-11.0-fat64.egg</a><br/>'
+    '<a href="../../packages/5b/50/28a9b1c65ca88f2e5570814db22bdf0fa819f6015fefc97d05878b796fda/frida-15.0.8-py2.7-win-amd64.egg#sha256=2efb63e548773029745e3e057ae4c7647c156af2ed479c5cc31c0167d4c0d9b1">frida-15.0.8-py2.7-win-amd64.egg</a><br/>'
+    '<a href="../../packages/72/18/3e36e66989828a7e4e8c4936287f5ba5aa1e2d5a7729e613c22171fdc939/frida-15.0.8-py2.7-win32.egg#sha256=cf0b5ac48f100c73b4eb33533f22eb4e4e2968a3b617c3e3a9671e2f1f7187d2">frida-15.0.8-py2.7-win32.egg</a><br/>'
+    '<a href="../../packages/3f/54/bc43a1cb31e5ca7974e38d9eec022d110233baa576b61446036fcfbd652d/frida-15.0.8-py3.6-linux-aarch64.egg#sha256=091f7e5b340f554064a8a675dcdb45f450c8c302f1543f92ccd61b6379ded37c">frida-15.0.8-py3.6-linux-aarch64.egg</a><br/>'
+    '<a href="../../packages/21/68/c23ad9197d39f8c953f72b8673ce3832842cbbfea32482712f9b3890c336/frida-15.0.8-py3.6-linux-armv7l.egg#sha256=1a43484f43a86e1adff050b87dedecd3f2a93f0d90d41b13b70427737613f53a">frida-15.0.8-py3.6-linux-armv7l.egg</a><br/>'
+    '<a href="../../packages/42/b0/58993429bb518a2c387d8cdb056a1f298fed627658e026a4f625c2e0d2be/frida-15.0.8-py3.8-android-aarch64.egg#sha256=a23853e0f81ce27da5e6cc07082849a673b2c8c148e40f7eaf79392e7181c1e7">frida-15.0.8-py3.8-android-aarch64.egg</a><br/>'
+    '<a href="../../packages/f3/5c/1132414e96543b68e0ee986e5d4f5c96ee2be80faf9662862db2a081e065/frida-15.0.8-py3.8-linux-i686.egg#sha256=2dcd57cd6ba60e0ea78edd7a1c1e68ac0c1c34ea8079fa30512a0021d5e7cd1f">frida-15.0.8-py3.8-linux-i686.egg</a><br/>'
+    '<a href="../../packages/0b/20/11101c2cc053bbe3695c8778ffb239e49c0bc24066257bc3246ef67770d9/frida-15.0.8-py3.8-linux-x86_64.egg#sha256=6b3f42225c22a1f149107f963abe9f7b5f32eb4915fe8fa8286e5657a7b6c789">frida-15.0.8-py3.8-linux-x86_64.egg</a><br/>'
+    '<a href="../../packages/f3/40/6cd6ebfe475c13ef2204f0163233f47611bbcc8b2abc8b38c8a6a34a1040/frida-15.0.8-py3.8-macosx-10.9-x86_64.egg#sha256=861e0463089e3f7c92f1a91e3518c4d3e820cde270c78b76c46f68db859e9022">frida-15.0.8-py3.8-macosx-10.9-x86_64.egg</a><br/>'
+    '<a href="../../packages/3d/35/26f4baf9e6916707fd19d6e8df28d87111e782e10b3f0fb369d470212581/frida-15.0.8-py3.8-macosx-11.0-arm64.egg#sha256=ee93a3fe432bf5b877a138d591e7bcd7794b235811967de7e60cef6d76342480">frida-15.0.8-py3.8-macosx-11.0-arm64.egg</a><br/>'
+    '<a href="../../packages/6c/1a/d5fc597bd5e09604aa97964d59017591847cb8b9026ee44a1ecf098820b1/frida-15.0.8-py3.8-win-amd64.egg#sha256=f21855d2539f8b82cb579a2cd6683c8443337365ab17b1d0c220fc3ceb6f4c92">frida-15.0.8-py3.8-win-amd64.egg</a><br/>'
+    '<a href="../../packages/63/54/35a70eb9212a11fbcf3de83ca89d776733768f7ddada85b69853e5bce2fe/frida-15.0.8-py3.8-win32.egg#sha256=ebc2ba7f0808690c52051f361ef05594107373700b00841e8325129efef0cec2">frida-15.0.8-py3.8-win32.egg</a><br/>'
+    '<a href="../../packages/e4/0f/9954d94b174ba703b7018ae01c5e37189715a7b1616a2341794ccbefe834/frida-15.0.8.tar.gz#sha256=de2df2924770601ce39cdc992fa3690b4a0891d614a515cad03bc1b94e762ff1">frida-15.0.8.tar.gz</a><br/>'
+)
+htmls.append(html)
+cases.extend([
+    (
+        setup.PEP503PageParser("frida", "15.1.0", "win-amd64"),
+        html,
+        []
+    ),
+    (
+        setup.PEP503PageParser("frida", "15.0.7", "win-amd64"),
+        html,
+        [
+            setup.ParsedUrlInfo(
+                url='../../packages/e0/5c/b45c8f27482d81179eb640726b703f95c624cc4f32ae3ed3f8bc858ae5d9/frida-15.0.7-py2.7-win-amd64.egg#sha256=eb696528b9c19f1895123e731b094363a87a4412d7ea4fcb54ef71841f7b3c1e',
+                filename='frida-15.0.7-py2.7-win-amd64.egg',
+                major=2, minor=7, micro=None
+            ),
+            setup.ParsedUrlInfo(
+                url='../../packages/77/34/6ebaea697f3df72818e60c6494a716c51f7f13b3da323598c1711d21779c/frida-15.0.7-py3.8-win-amd64.egg#sha256=a9964cc6dd4e3ea71c42b1800c79571c670905dc82cd769302b066499fff7bf4',
+                filename='frida-15.0.7-py3.8-win-amd64.egg',
+                major=3, minor=8, micro=None
+            ),
+        ]
+    ),
+    (
+        setup.PEP503PageParser("frida", "15.0.7", "linux-i686"),
+        html,
+        [
+            setup.ParsedUrlInfo(
+                url='../../packages/e3/21/da75f6207f76750799d68938707a74d46512e666293eb550247bf5314613/frida-15.0.7-py2.7-linux-i686.egg#sha256=444246bad3b2222efec301e96c2d6ac5da039d41acd655f6d5b6e548637cae09',
+                filename='frida-15.0.7-py2.7-linux-i686.egg',
+                major=2, minor=7, micro=None
+            ),
+            setup.ParsedUrlInfo(
+                url='../../packages/19/d3/a4a1980005e232399575aeb2ae973d2087a94ec7dbaf6d7a481612979fc7/frida-15.0.7-py3.8-linux-i686.egg#sha256=ed922ec0258e95f39b4004066b72fb48546041d28602e55d44ca12effa80e8bf',
+                filename='frida-15.0.7-py3.8-linux-i686.egg',
+                major=3, minor=8, micro=None
+            ),
+        ]
+    ),
+    (
+        setup.PEP503PageParser("frida", "15.0.8", "linux-x86_64"),
+        html,
+        [
+            setup.ParsedUrlInfo(
+                url='../../packages/64/4a/1e1735a8c2f606c953cccfb9d7086c15d19b5151ebd6e0cbcab2e817d6e2/frida-15.0.8-py2.7-linux-x86_64.egg#sha256=e5b29da8394ef5643fc42877856859d544cd2aba0a874a4a700f2ce4521d9780',
+                filename='frida-15.0.8-py2.7-linux-x86_64.egg',
+                major=2, minor=7, micro=None
+            ),
+            setup.ParsedUrlInfo(
+                url='../../packages/0b/20/11101c2cc053bbe3695c8778ffb239e49c0bc24066257bc3246ef67770d9/frida-15.0.8-py3.8-linux-x86_64.egg#sha256=6b3f42225c22a1f149107f963abe9f7b5f32eb4915fe8fa8286e5657a7b6c789',
+                filename='frida-15.0.8-py3.8-linux-x86_64.egg',
+                major=3, minor=8, micro=None
+            ),
+        ]
+    ),
+    (
+        setup.PEP503PageParser("frida", "15.0.7", "linux-amd64"),
+        html,
+        []
+    ),
+    (
+        setup.PEP503PageParser("frida", "15.0.8", "macosx-11.0-fat64"),
+        html,
+        [
+            setup.ParsedUrlInfo(
+                url='../../packages/d1/20/a65170d6a898541839acb03a16d1dd26499928c937350078765fe1e4beb3/frida-15.0.8-py2.7-macosx-11.0-fat64.egg#sha256=f9e58ff7f6d53640a991d3e77711b0095927103d7bdfef55268b58091938f72e',
+                filename='frida-15.0.8-py2.7-macosx-11.0-fat64.egg',
+                major=2, minor=7, micro=None
+            ),
+        ]
+    ),
+])
+
+html = (
+    '<h3>frida-15.1.1-py3.8-linux-x86_64.egg</h3>'
+    '<a href="../../packages/e4/c1/82e361bbaa535b334f5b1b432b4573a7871fa973ede'
+    'b3aab9dbb6b3b4cdc/frida-15.1.1-py3.8-linux-x86_64.egg#sha256=505f4ffa34cc'
+    '7d68664fcd00d469f5d832e6778800d112aadb8a13692f984b40">frida-15.1.1-py3.8-'
+    'linux-x86_64.egg</a><br/>'
+)
+htmls.append(html)
+cases.extend([
+    (
+        setup.PEP503PageParser("frida", "15.1.1", "linux-x86_64"),
+        html,
+        [
+            setup.ParsedUrlInfo(
+                url='../../packages/e4/c1/82e361bbaa535b334f5b1b432b4573a7871fa973edeb3aab9dbb6b3b4cdc/frida-15.1.1-py3.8-linux-x86_64.egg#sha256=505f4ffa34cc7d68664fcd00d469f5d832e6778800d112aadb8a13692f984b40',
+                filename='frida-15.1.1-py3.8-linux-x86_64.egg',
+                major=3, minor=8, micro=None
+            ),
+        ]
+    ),
+])
+
+html = (
+    '<a role="button" tabindex="0">frida-15.0.1-py3.8-android-aarch64.egg</a>'
+    '<a href="../../packages/3e/80/78fa3ed5fd636b606dc06157069b37eb677652cd985'
+    '739cde35a86d7a362/frida-15.0.1-py3.8-android-aarch64.egg#sha256=d44bc3415'
+    '90dd8cf2623089b54aa16d697536fb016fde0ecd6df5262723c652b">frida-15.0.1-py3'
+    '.8-android-aarch64.egg</a><br/>'
+)
+htmls.append(html)
+cases.extend([
+    (
+        setup.PEP503PageParser("frida", "15.0.1", "android-aarch64"),
+        html,
+        [
+            setup.ParsedUrlInfo(
+                url='../../packages/3e/80/78fa3ed5fd636b606dc06157069b37eb677652cd985739cde35a86d7a362/frida-15.0.1-py3.8-android-aarch64.egg#sha256=d44bc341590dd8cf2623089b54aa16d697536fb016fde0ecd6df5262723c652b',
+                filename='frida-15.0.1-py3.8-android-aarch64.egg',
+                major=3, minor=8, micro=None
+            ),
+        ]
+    ),
+])
+
+
+class TestPEP503PageParser(unittest.TestCase):
+    def test_parse_html(self):
+        for parser, html, result in cases:
+            for _ in range(2):
+                parser.reset()
+                parser.feed(html)
+                assert parser.urls == result, (parser.urls, result)