Lower case e in decimal representation

hukkin · Jan 13, 2025 · 95b44c0 · 95b44c0
1 parent 9c77cbb
commit 95b44c0
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Showing 2 changed files with 6 additions and 4 deletions.
diff --git a/src/tomli_w/_writer.py b/src/tomli_w/_writer.py
@@ -125,8 +125,8 @@ def format_decimal(obj: Decimal) -> str:
         return "inf"
     if obj == Decimal("-inf"):
         return "-inf"
-    dec_str = str(obj)
-    return dec_str if "." in dec_str or "E" in dec_str else dec_str + ".0"
+    dec_str = str(obj).lower()
+    return dec_str if "." in dec_str or "e" in dec_str else dec_str + ".0"
 
 
 def format_inline_table(obj: Mapping, ctx: Context) -> str:

diff --git a/tests/test_types.py b/tests/test_types.py
@@ -13,6 +13,7 @@ def test_decimal():
         "decimal-nan": Decimal("nan"),
         "decimal-2e3": Decimal("2e3"),
         "decimal-2E3": Decimal("2E3"),
+        "float-2E3": float("2E3"),
     }
     assert (
         tomli_w.dumps(obj)
@@ -23,8 +24,9 @@ def test_decimal():
 decimal-inf = inf
 decimal-minus-inf = -inf
 decimal-nan = nan
-decimal-2e3 = 2E+3
-decimal-2E3 = 2E+3
+decimal-2e3 = 2e+3
+decimal-2E3 = 2e+3
+float-2E3 = 2e+3
 """
     )