Merge branch '3.x'

tests/test_build_latex.py

@@ -16,7 +16,6 @@ from shutil import copyfile
 from subprocess import PIPE, CalledProcessError
 
 import pytest
-from test_build_html import ENV_WARNINGS
 
 from sphinx.builders.latex import default_latex_documents
 from sphinx.config import Config
@@ -25,6 +24,8 @@ from sphinx.testing.util import strip_escseq
 from sphinx.util.osutil import cd, ensuredir
 from sphinx.writers.latex import LaTeXTranslator
 
+from .test_build_html import ENV_WARNINGS
+
 LATEX_ENGINES = ['pdflatex', 'lualatex', 'xelatex']
 DOCCLASSES = ['howto', 'manual']
 STYLEFILES = ['article.cls', 'fancyhdr.sty', 'titlesec.sty', 'amsmath.sty',