Still needs feynml bump

.gitignore

@@ -152,3 +152,4 @@ tmp.tex
 tests/out.pdf
 
 .vscode/*
+tmp-*

pyfeyn2/render/latex/tikzfeynman.py

@@ -2,10 +2,13 @@
 from typing import List
 from warnings import warn
 
+from feynml.connector import Connector
+from feynml.feynmandiagram import FeynmanDiagram
+from feynml.leg import Leg
+from feynml.vertex import Vertex
 from pylatex import Command
 from pylatex.utils import NoEscape
 
-from pyfeyn2.feynmandiagram import Connector, FeynmanDiagram, Leg, Vertex
 from pyfeyn2.render.latex.latex import LatexRender
 
 # converte FeynmanDiagram to tikz-feynman
@@ -56,7 +59,13 @@ def stylize_connect(fd: FeynmanDiagram, c: Connector):
     if style.getProperty("line") is not None:
         ret += type_map[style.getProperty("line").value]
     else:
-        ret += type_map[c.type]  # fallback to type if no style
+        if c.type is not None:
+            ret += type_map[c.type]  # fallback to type if no style
+        else:
+            warnings.warn(
+                f"No type or style set for connector  {c.id} {c.type} {c.pdgid}"
+            )
+            ret += "plain"
 
     if c.label is not None:
         ret += ",edge label=" + c.label