remove this environmnet variable usage which has limitations on some systems.

Pipfile.lock

@@ -114,11 +114,11 @@
         },
         "charset-normalizer": {
             "hashes": [
-                "sha256:5189b6f22b01957427f35b6a08d9a0bc45b46d3788ef5a92e978433c7a35f8a5",
-                "sha256:575e708016ff3a5e3681541cb9d79312c416835686d054a23accb873b254f413"
+                "sha256:5a3d016c7c547f69d6f81fb0db9449ce888b418b5b9952cc5e6e66843e9dd845",
+                "sha256:83e9a75d1911279afd89352c68b45348559d1fc0506b054b346651b5e7fee29f"
             ],
             "markers": "python_version >= '3.6'",
-            "version": "==2.1.0"
+            "version": "==2.1.1"
         },
         "click": {
             "hashes": [
@@ -203,10 +203,10 @@
         },
         "distlib": {
             "hashes": [
-                "sha256:a7f75737c70be3b25e2bee06288cec4e4c221de18455b2dd037fe2a795cab2fe",
-                "sha256:b710088c59f06338ca514800ad795a132da19fda270e3ce4affc74abf955a26c"
+                "sha256:14bad2d9b04d3a36127ac97f30b12a19268f211063d8f8ee4f47108896e11b46",
+                "sha256:f35c4b692542ca110de7ef0bea44d73981caeb34ca0b9b6b2e6d7790dda8f80e"
             ],
-            "version": "==0.3.5"
+            "version": "==0.3.6"
         },
         "docutils": {
             "hashes": [
@@ -419,10 +419,11 @@
         },
         "pathspec": {
             "hashes": [
-                "sha256:7d15c4ddb0b5c802d161efc417ec1a2558ea2653c2e8ad9c19098201dc1c993a",
-                "sha256:e564499435a2673d586f6b2130bb5b95f04a3ba06f81b8f895b651a3c76aabb1"
+                "sha256:01eecd304ba0e6eeed188ae5fa568e99ef10265af7fd9ab737d6412b4ee0ab85",
+                "sha256:aefa80ac32d5bf1f96139dca67cefb69a431beff4e6bf1168468f37d7ab87015"
             ],
-            "version": "==0.9.0"
+            "markers": "python_version >= '3.7'",
+            "version": "==0.10.0"
         },
         "pipenv": {
             "editable": true,
@@ -606,11 +607,11 @@
         },
         "setuptools": {
             "hashes": [
-                "sha256:10602cd0a6f5feab6656e9587f9075292ab777c5200f3bf00293ecd23d9f2788",
-                "sha256:d2e010624c781b26ad6629a8de9832327cf853dea93894487979e55f9ad06857"
+                "sha256:2e24e0bec025f035a2e72cdd1961119f557d78ad331bb00ff82efb2ab8da8e82",
+                "sha256:7732871f4f7fa58fb6bdcaeadb0161b2bd046c85905dbaa066bdcbcc81953b57"
             ],
             "markers": "python_version >= '3.7'",
-            "version": "==65.1.0"
+            "version": "==65.3.0"
         },
         "six": {
             "hashes": [
@@ -732,10 +733,11 @@
         },
         "towncrier": {
             "hashes": [
-                "sha256:9cb6f45c16e1a1eec9d0e7651165e7be60cd0ab81d13a5c96ca97a498ae87f48",
-                "sha256:fc5a88a2a54988e3a8ed2b60d553599da8330f65722cc607c839614ed87e0f92"
+                "sha256:3b780c3d966e1b26414830aec3d15000654b31e64e024f3e5fd128b4c6eb8f47",
+                "sha256:7d3839b033859b45fb55df82b74cfd702431933c0cc9f287a5a7ea3e05d042cb"
             ],
-            "version": "==21.9.0"
+            "markers": "python_version >= '3.7'",
+            "version": "==22.8.0"
         },
         "typing-extensions": {
             "hashes": [
@@ -747,19 +749,19 @@
         },
         "urllib3": {
             "hashes": [
-                "sha256:c33ccba33c819596124764c23a97d25f32b28433ba0dedeb77d873a38722c9bc",
-                "sha256:ea6e8fb210b19d950fab93b60c9009226c63a28808bc8386e05301e25883ac0a"
+                "sha256:3fa96cf423e6987997fc326ae8df396db2a8b7c667747d47ddd8ecba91f4a74e",
+                "sha256:b930dd878d5a8afb066a637fbb35144fe7901e3b209d1cd4f524bd0e9deee997"
             ],
             "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4, 3.5' and python_version < '4'",
-            "version": "==1.26.11"
+            "version": "==1.26.12"
         },
         "virtualenv": {
             "hashes": [
-                "sha256:4193b7bc8a6cd23e4eb251ac64f29b4398ab2c233531e66e40b19a6b7b0d30c1",
-                "sha256:d86ea0bb50e06252d79e6c241507cb904fcd66090c3271381372d6221a3970f9"
+                "sha256:014f766e4134d0008dcaa1f95bafa0fb0f575795d07cae50b1bee514185d6782",
+                "sha256:035ed57acce4ac35c82c9d8802202b0e71adac011a511ff650cbcf9635006a22"
             ],
             "markers": "python_version >= '3.6'",
-            "version": "==20.16.3"
+            "version": "==20.16.4"
         },
         "virtualenv-clone": {
             "hashes": [

pipenv/resolver.py

@@ -96,6 +96,12 @@ def get_parser():
         action="store",
         default=os.environ.get("PIPENV_RESOLVER_FILE"),
     )
+    parser.add_argument(
+        "--constraints-file",
+        metavar="constraints_file",
+        action="store",
+        default=None,
+    )
     parser.add_argument("packages", nargs="*")
     return parser
 
@@ -120,8 +126,13 @@ def handle_parsed_args(parsed):
         logger.setLevel(logging.INFO)
         os.environ["PIP_RESOLVER_DEBUG"] = ""
     os.environ["PIPENV_VERBOSITY"] = str(parsed.verbose)
-    if "PIPENV_PACKAGES" in os.environ:
-        parsed.packages += os.environ.get("PIPENV_PACKAGES", "").strip().split("\n")
+    if parsed.constraints_file:
+        constraints = open(parsed.constraints_file)
+        file_constraints = constraints.read().strip().split("\n")
+        constraints.close()
+        os.unlink(parsed.constraints_file)
+        print(sorted(file_constraints))
+        parsed.packages += sorted(file_constraints)
     return parsed
 
 

pipenv/utils/resolver.py

@@ -1026,10 +1026,15 @@ def venv_resolve_deps(
             sp.write(decode_for_output("Building requirements..."))
             deps = convert_deps_to_pip(deps, project, include_index=True)
             constraints = set(deps)
-            os.environ["PIPENV_PACKAGES"] = str("\n".join(constraints))
+            constraints_file = tempfile.NamedTemporaryFile(
+                mode="w+", prefix="pipenv", suffix="constraints.txt", delete=False
+            )
+            constraints_file.write(str("\n".join(constraints)))
+            constraints_file.close()
+            cmd.append("--constraints-file")
+            cmd.append(constraints_file.name)
             sp.write(decode_for_output("Resolving dependencies..."))
             c = resolve(cmd, sp, project=project)
-            results = c.stdout.strip()
             if c.returncode == 0:
                 sp.green.ok(environments.PIPENV_SPINNER_OK_TEXT.format("Success!"))
                 if not project.s.is_verbose() and c.stderr.strip():