init

.venv/lib/python3.8/site-packages/virtualenv/activation/python/__init__.py

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+from __future__ import absolute_import, unicode_literals
+
+import os
+import sys
+from collections import OrderedDict
+
+from virtualenv.util.path import Path
+from virtualenv.util.six import ensure_text
+
+from ..via_template import ViaTemplateActivator
+
+
+class PythonActivator(ViaTemplateActivator):
+    def templates(self):
+        yield Path("activate_this.py")
+
+    def replacements(self, creator, dest_folder):
+        replacements = super(PythonActivator, self).replacements(creator, dest_folder)
+        lib_folders = OrderedDict((os.path.relpath(str(i), str(dest_folder)), None) for i in creator.libs)
+        win_py2 = creator.interpreter.platform == "win32" and creator.interpreter.version_info.major == 2
+        replacements.update(
+            {
+                "__LIB_FOLDERS__": ensure_text(os.pathsep.join(lib_folders.keys())),
+                "__DECODE_PATH__": ("yes" if win_py2 else ""),
+            },
+        )
+        return replacements
+
+    @staticmethod
+    def _repr_unicode(creator, value):
+        py2 = creator.interpreter.version_info.major == 2
+        if py2:  # on Python 2 we need to encode this into explicit utf-8, py3 supports unicode literals
+            start = 2 if sys.version_info[0] == 3 else 1
+            value = ensure_text(repr(value.encode("utf-8"))[start:-1])
+        return value

.venv/lib/python3.8/site-packages/virtualenv/activation/python/activate_this.py

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+# -*- coding: utf-8 -*-
+"""Activate virtualenv for current interpreter:
+
+Use exec(open(this_file).read(), {'__file__': this_file}).
+
+This can be used when you must use an existing Python interpreter, not the virtualenv bin/python.
+"""
+import os
+import site
+import sys
+
+try:
+    abs_file = os.path.abspath(__file__)
+except NameError:
+    raise AssertionError("You must use exec(open(this_file).read(), {'__file__': this_file}))")
+
+bin_dir = os.path.dirname(abs_file)
+base = bin_dir[: -len("__BIN_NAME__") - 1]  # strip away the bin part from the __file__, plus the path separator
+
+# prepend bin to PATH (this file is inside the bin directory)
+os.environ["PATH"] = os.pathsep.join([bin_dir] + os.environ.get("PATH", "").split(os.pathsep))
+os.environ["VIRTUAL_ENV"] = base  # virtual env is right above bin directory
+
+# add the virtual environments libraries to the host python import mechanism
+prev_length = len(sys.path)
+for lib in "__LIB_FOLDERS__".split(os.pathsep):
+    path = os.path.realpath(os.path.join(bin_dir, lib))
+    site.addsitedir(path.decode("utf-8") if "__DECODE_PATH__" else path)
+sys.path[:] = sys.path[prev_length:] + sys.path[0:prev_length]
+
+sys.real_prefix = sys.prefix
+sys.prefix = base