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Lib/site-packages/pipenv/vendor/pip_shims/environment.py

@@ -0,0 +1,45 @@
+# -*- coding=utf-8 -*-
+"""
+Module with functionality to learn about the environment.
+"""
+from __future__ import absolute_import
+
+import importlib
+import os
+
+
+def get_base_import_path():
+    base_import_path = os.environ.get("PIP_SHIMS_BASE_MODULE", "pip")
+    return base_import_path
+
+
+BASE_IMPORT_PATH = get_base_import_path()
+
+
+def get_pip_version(import_path=BASE_IMPORT_PATH):
+    try:
+        pip = importlib.import_module(import_path)
+    except ImportError:
+        if import_path != "pip":
+            return get_pip_version(import_path="pip")
+        else:
+            import subprocess
+
+            version = subprocess.check_output(["pip", "--version"])
+            if version:
+                version = version.decode("utf-8").split()[1]
+                return version
+            return "0.0.0"
+    version = getattr(pip, "__version__", None)
+    return version
+
+
+def is_type_checking():
+    try:
+        from typing import TYPE_CHECKING
+    except ImportError:
+        return False
+    return TYPE_CHECKING
+
+
+MYPY_RUNNING = os.environ.get("MYPY_RUNNING", is_type_checking())