Specify Constraints File In Dependencies

[juftin]

uv doesn't specify a constraints file as a dependency when enumerating which packages depend on one-another. IMO, having -c constraints.txt is helpful information in the following example (uv==0.1.6):

--- a/piptools_requirements.txt
+++ b/uv_requirements.txt
@@ -1,9 +1,5 @@
-#
-# This file is autogenerated by pip-compile with Python 3.12
-# by the following command:
-#
-#    pip-compile --constraint=constraints.txt --output-file=piptools_requirements.txt -
-#
+# This file was autogenerated by uv via the following command:
+#    uv pip compile - -o uv_requirements.txt -c constraints.txt
 certifi==2024.2.2
     # via requests
 charset-normalizer==3.3.2
@@ -11,8 +7,5 @@ charset-normalizer==3.3.2
 idna==3.6
     # via requests
 requests==2.31.0
-    # via -r -
 urllib3==2.2.1
-    # via
-    #   -c constraints.txt
-    #   requests
+    # via requests

Recreation Steps

docker run --rm -it python:3.12 /bin/bash

pip install -q pip-tools uv
echo "urllib3==2.2.1" > constraints.txt
echo "requests" | pip-compile - -o piptools_requirements.txt -c constraints.txt
echo "requests" | uv pip compile - -o uv_requirements.txt -c constraints.txt
git diff piptools_requirements.txt uv_requirements.txt

[juftin]

Same goes for requirements.in files, I think having them included is helpful too:

pip install -q pip-tools uv
echo "urllib3==2.2.1" > constraints.txt
echo "requests" > requirements.in
pip-compile requirements.in -o piptools_requirements.txt -c constraints.txt
uv pip compile requirements.in -o uv_requirements.txt -c constraints.txt
git diff piptools_requirements.txt uv_requirements.txt

--- a/piptools_requirements.txt
+++ b/uv_requirements.txt
@@ -1,9 +1,5 @@
-#
-# This file is autogenerated by pip-compile with Python 3.12
-# by the following command:
-#
-#    pip-compile --constraint=constraints.txt --output-file=piptools_requirements.txt requirements.in
-#
+# This file was autogenerated by uv via the following command:
+#    uv pip compile requirements.in -o uv_requirements.txt -c constraints.txt
 certifi==2024.2.2
     # via requests
 charset-normalizer==3.3.2
@@ -11,8 +7,5 @@ charset-normalizer==3.3.2
 idna==3.6
     # via requests
 requests==2.31.0
-    # via -r requirements.in
 urllib3==2.2.1
-    # via
-    #   -c constraints.txt
-    #   requests
+    # via requests

[T-256]

Related #1343

[charliermarsh]

Yeah I think this is the same as #1343. Gonna merge into that issue. Thanks!

[charliermarsh]

Supported in the next version via #3269.