Merge pull request #13680 from eendebakpt/latex_rendering_tempdir

Carreau · web-flow · commit 2f93f505c60a · 2022-08-30T11:20:19.000+02:00
Use relative filename in latex and dvips commands of latex_to_png_dvipng
diff --git a/IPython/lib/latextools.py b/IPython/lib/latextools.py
@@ -146,11 +146,11 @@ def latex_to_png_dvipng(s, wrap, color='Black', scale=1.0):
         return None
     try:
         workdir = Path(tempfile.mkdtemp())
-        tmpfile = workdir.joinpath("tmp.tex")
-        dvifile = workdir.joinpath("tmp.dvi")
-        outfile = workdir.joinpath("tmp.png")
+        tmpfile = "tmp.tex"
+        dvifile = "tmp.dvi"
+        outfile = "tmp.png"
 
-        with tmpfile.open("w", encoding="utf8") as f:
+        with workdir.joinpath(tmpfile).open("w", encoding="utf8") as f:
             f.writelines(genelatex(s, wrap))
 
         with open(os.devnull, 'wb') as devnull:
@@ -181,7 +181,7 @@ def latex_to_png_dvipng(s, wrap, color='Black', scale=1.0):
                 stderr=devnull,
             )
 
-        with outfile.open("rb") as f:
+        with workdir.joinpath(outfile).open("rb") as f:
             return f.read()
     except subprocess.CalledProcessError:
         return None
diff --git a/docs/source/whatsnew/pr/latex_rendering_relative_files.rst b/docs/source/whatsnew/pr/latex_rendering_relative_files.rst
@@ -0,0 +1,7 @@
+Relative filenames in Latex rendering
+=====================================
+
+The `latex_to_png_dvipng` command internally generates input and output file arguments to `latex` and `dvipis`. These arguments are now generated as relative files to the current working directory instead of absolute file paths.
+This solves a problem where the current working directory contains characters that are not handled properly by `latex` and `dvips`.
+There are no changes to the user API.
+
