Fixed bad escape character (#24316)

As of Python 3.7, a backslash-character pair that is not a valid escape sequence now generates an error, earlier it was a deprecation warning.
2020-06-24 18:23:11 +05:00
parent 45d277beb6
commit 39b109a9ad
1 changed files with 1 additions and 1 deletions
--- a/common/lib/symmath/symmath/formula.py
+++ b/common/lib/symmath/symmath/formula.py
@@ -84,7 +84,7 @@ def to_latex(expr):
    # sometimes get 'script(N)__B' or more complicated terms
    expr_s = re.sub(
        r'script([a-zA-Z0-9]+)',
-        '\\mathcal{\\1}',
+        r'\\mathcal{\\1}',
        expr_s
    )