man. some major restructuring, and envsetup.py is a kinda neat hack.

aif/__init__.py

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+class AIF(object):
+    def __init__(self):
+        pass

aif/config.py

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+import os
+##
+from lxml import etree
+
+class Config(object):
+    def __init__(self):
+        self.xml = None
+
+    def parseLocalFile(self, fpath):
+        fpath = os.path.abspath(os.path.expanduser(fpath))
+        pass
+
+    def parseRemoteFile(self, url):
+        pass
+
+    def parseRawContent(self, content):
+        pass

aif/disk.py

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+# To reproduce sgdisk behaviour in v1 of AIF-NG:
+# https://gist.github.com/herry13/5931cac426da99820de843477e41e89e
+# https://github.com/dcantrell/pyparted/blob/master/examples/query_device_capacity.py
+# TODO: Remember to replicate genfstab behaviour.
+
+try:
+    # https://stackoverflow.com/a/34812552/733214
+    # https://github.com/karelzak/util-linux/blob/master/libmount/python/test_mount_context.py#L6
+    import libmount as mount
+except ImportError:
+    # We should never get here. util-linux is part of core (base) in Arch and uses "libmount".
+    import pylibmount as mount
+##
+import parted
+import psutil

aif/envsetup.py

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+# We use a temporary venv to ensure we have all the external libraries we need.
+# This removes the necessity of extra libs at runtime. If you're in an environment that doesn't have access to PyPI/pip,
+# you'll need to customize the install host (typically the live CD/live USB) to have them installed as system packages.
+# Before you hoot and holler about this, Let's Encrypt's certbot-auto does the same thing.
+# Except I segregate it out even further; I don't even install pip into the system python.
+
+import ensurepip
+import json
+import os
+import tempfile
+import subprocess
+import sys
+import venv
+
+# TODO: a more consistent way of managing deps?
+depmods = ['gpg', 'requests', 'lxml', 'psutil', 'pyparted', 'pytz', 'passlib', 'validators']
+
+class EnvBuilder(object):
+    def __init__(self):
+        self.vdir = tempfile.mkdtemp(prefix = '.aif_', suffix = '_VENV')
+        self.venv = venv.create(self.vdir, system_site_packages = True, clear = True, with_pip = True)
+        ensurepip.bootstrap(root = self.vdir)
+        # pip does some dumb env var things and doesn't clean up after itself.
+        for v in ('PIP_CONFIG_FILE', 'ENSUREPIP_OPTIONS', 'PIP_REQ_TRACKER', 'PLAT'):
+            if os.environ.get(v):
+                del(os.environ[v])
+        moddir_raw = subprocess.run([os.path.join(self.vdir,
+                                                  'bin',
+                                                  'python3'),
+                                     '-c',
+                                     ('import site; '
+                                      'import json; '
+                                      'print(json.dumps(site.getsitepackages(), indent = 4))')],
+                                    stdout = subprocess.PIPE)
+        self.modulesdir = json.loads(moddir_raw.stdout.decode('utf-8'))[0]
+        # This is SO. DUMB. WHY DO I HAVE TO CALL PIP FROM A SHELL. IT'S WRITTEN IN PYTHON.
+        # https://pip.pypa.io/en/stable/user_guide/#using-pip-from-your-program
+        # TODO: logging
+        for m in depmods:
+            pip_cmd = [os.path.join(self.vdir,
+                                    'bin',
+                                    'python3'),
+                       '-m',
+                       'pip',
+                       'install',
+                       '--disable-pip-version-check',
+                       m]
+            subprocess.run(pip_cmd)
+        # And now make it available to other components.
+        sys.path.insert(1, self.modulesdir)

aif/log.py

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+import logging

aif/network.py

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+import ipaddress

aif/pacman.py

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+# We can manually bootstrap and alter pacman's keyring. But check the bootstrap tarball; we might not need to.
+# TODO.
+
+import os
+##
+import gpg

aif/users.py

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+# There isn't a python package that can manage *NIX users (well), unfortunately.
+# So we do something stupid:
+# https://www.tldp.org/LDP/sag/html/adduser.html
+# https://unix.stackexchange.com/a/153227/284004
+# https://wiki.archlinux.org/index.php/users_and_groups#File_list
+
+import os
+##
+import passlib  # validate password hash/gen hash