diff --git a/pynumeral/pynumeral.py b/pynumeral/pynumeral.py
index 0f669a6..c9c963c 100644
--- a/pynumeral/pynumeral.py
+++ b/pynumeral/pynumeral.py
@@ -80,6 +80,7 @@ def get_suffix(self, numeralfmt, value):
     def get_python_format(self, numeralfmt, value):
         thousand = "," if "," in numeralfmt else ""
         float_or_exp = "e" if "e+0" in numeralfmt else "f"
+        precision = numeralfmt.split(".")[1] if "." in numeralfmt else None
         if re.match("^0{2,}$", numeralfmt.split(",")[0]):
             fmt = "{:0%s%s}" % (
                 len(numeralfmt.split(",")[0])
@@ -89,15 +90,15 @@ def get_python_format(self, numeralfmt, value):
             )
             value = int(value)
         else:
-            if "." in numeralfmt:
-                decimals = len(
-                    list(
-                        filter(
-                            lambda c: c == "0",
-                            numeralfmt.split(".")[1].replace("e+0", ""),
-                        )
+            if precision is not None:
+                if "[" in numeralfmt and "[.]" not in numeralfmt:
+                    precision = precision.replace("]", "").split("[")
+                    split_val = str(value).split(".")
+                    decimals = 0 if len(split_val) == 1 else precision[1].count("0")
+                else:
+                    decimals = len(
+                        list(filter(lambda c: c == "0", precision.replace("e+0", "")))
                     )
-                )
             else:
                 decimals = 0
             plus = "+" if re.match(".*(^|[^e])\\+.*", numeralfmt) else "-"
diff --git a/tests/test_pynumeral.py b/tests/test_pynumeral.py
index d92d991..fb967c0 100644
--- a/tests/test_pynumeral.py
+++ b/tests/test_pynumeral.py
@@ -60,3 +60,4 @@ def test_all():
     assert pynumeral.format(0.000123987, "0.000e+0") == "1.240e-04"
     assert pynumeral.format(1, "0 a") == "1 "
     assert pynumeral.format(-1, "00") == "-01"
+    assert pynumeral.format(1, "0,0.[000]") == "1"