Trac #30605: reformat according to pycodestyle.

There were a few one-line "if" statements that have now been expanded
to multiple lines.

src/sage/geometry/cone.py

@@ -582,14 +582,18 @@ def _ambient_space_point(body, data):
     def try_base_extend(ring):
         # Factor out the "try this ring..." code that's repeated four
         # times.
-        try: return L.base_extend(ring)(data)
-        except TypeError: pass
+        try:
+            return L.base_extend(ring)(data)
+        except TypeError:
+            pass
         except ValueError as ex:
-            if str(ex).startswith("Cannot coerce"): pass
+            if str(ex).startswith("Cannot coerce"):
+                pass
 
     # Special treatment for toric lattice elements
     p = try_base_extend(ZZ)
-    if p is not None: return p
+    if p is not None:
+        return p
     if is_ToricLattice(parent(data)):
         raise TypeError("the point %s and %s have incompatible "
                         "lattices" % (data, body))
@@ -599,7 +603,8 @@ def try_base_extend(ring):
     # attempt a numerical representation.
     for ring in [QQ, AA, RR]:
         p = try_base_extend(ring)
-        if p is not None: return p
+        if p is not None:
+            return p
 
     # Raise TypeError with our own message
     raise TypeError("%s does not represent a valid point in the ambient "