Add ℓ as alternative for liter (#2014)

hgrecco · Jul 8, 2024 · bffbbc2 · bffbbc2
1 parent 6483353
commit bffbbc2
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Showing 3 changed files with 5 additions and 1 deletion.
diff --git a/CHANGES b/CHANGES
@@ -4,6 +4,7 @@ Pint Changelog
 0.25 (unreleased)
 -----------------
 
+- Added ℓ as alternative for liter
 - Support permille units and `‰` symbol (PR #2033, Issue #1963)
 
 

diff --git a/pint/default_en.txt b/pint/default_en.txt
@@ -222,7 +222,7 @@ hectare = 100 * are = ha
 
 # Volume
 [volume] = [length] ** 3
-liter = decimeter ** 3 = l = L = litre
+liter = decimeter ** 3 = l = L = ℓ = litre
 cubic_centimeter = centimeter ** 3 = cc
 lambda = microliter = λ
 stere = meter ** 3

diff --git a/pint/testsuite/test_issues.py b/pint/testsuite/test_issues.py
@@ -408,6 +408,9 @@ def test_micro_creation_U03bc(self, module_registry):
     def test_micro_creation_U00b5(self, module_registry):
         module_registry.Quantity(2, "µm")
 
+    def test_liter_creation_U2113(self, module_registry):
+        module_registry.Quantity(2, "ℓ")
+
     @helpers.requires_numpy
     def test_issue171_real_imag(self, module_registry):
         qr = [1.0, 2.0, 3.0, 4.0] * module_registry.meter