Merge pull request #1054 from achaudhary997/fix1043

Fixes #1043.

2 files changed, 34 insertions, 2 deletions

diff --git a/rdflib/term.py b/rdflib/term.py
index 32ec6af4..ac69c3bd 100644
--- a/rdflib/term.py
+++ b/rdflib/term.py
@@ -1259,10 +1259,9 @@ class Literal(Identifier):
                     return sub("\\.?0*e", "e", "%e" % float(self))
                 elif self.datatype == _XSD_DECIMAL:
                     s = "%s" % self
-                    if "." not in s:
+                    if "." not in s and "e" not in s and "E" not in s:
                         s += ".0"
                     return s
-
                 elif self.datatype == _XSD_BOOLEAN:
                     return ("%s" % self).lower()
                 else:
diff --git a/test/test_issue1043.py b/test/test_issue1043.py
new file mode 100644
index 00000000..db202d77
--- /dev/null
+++ b/test/test_issue1043.py
@@ -0,0 +1,33 @@
+import decimal

+import unittest

+import io

+import sys

+

+from rdflib import Graph, Namespace, XSD, RDFS, Literal

+

+

+class TestIssue1043(unittest.TestCase):

+

+    def test_issue_1043(self):

+        expected = """@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .

+@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

+

+<http://example.org/number> rdfs:label 4e-08 .

+

+

+"""

+        capturedOutput = io.StringIO()

+        sys.stdout = capturedOutput

+        g = Graph()

+        g.bind('xsd', XSD)

+        g.bind('rdfs', RDFS)

+        n = Namespace("http://example.org/")

+        g.add((n.number, RDFS.label, Literal(0.00000004, datatype=XSD.decimal)))

+        print(g.serialize(format="turtle").decode("utf-8"))

+        sys.stdout = sys.__stdout__

+        self.assertEqual(capturedOutput.getvalue(), expected)

+

+

+

+if __name__ == "__main__":

+    unittest.main()
\ No newline at end of file