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Diffstat (limited to 'sphinx/ext/graphviz.py')
| -rw-r--r-- | sphinx/ext/graphviz.py | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sphinx/ext/graphviz.py b/sphinx/ext/graphviz.py index b4a69a0f2..0459c4a96 100644 --- a/sphinx/ext/graphviz.py +++ b/sphinx/ext/graphviz.py @@ -6,7 +6,7 @@ import re import subprocess from os import path from subprocess import PIPE, CalledProcessError -from typing import Any, Dict, List, Tuple +from typing import Any, Dict, List, Optional, Tuple from docutils import nodes from docutils.nodes import Node @@ -210,7 +210,7 @@ class GraphvizSimple(SphinxDirective): def render_dot(self: SphinxTranslator, code: str, options: Dict, format: str, - prefix: str = 'graphviz', filename: str = None) -> Tuple[str, str]: + prefix: str = 'graphviz', filename: Optional[str] = None) -> Tuple[str, str]: """Render graphviz code into a PNG or PDF output file.""" graphviz_dot = options.get('graphviz_dot', self.builder.config.graphviz_dot) hashkey = (code + str(options) + str(graphviz_dot) + |