fix '\...' -> r''

Author: FabriceSalvaire

PySpice/Math/__init__.py

@@ -38,9 +38,9 @@ def even(x):
 ####################################################################################################
 
 def rms_to_amplitude(x):
-    """Return :math:`x \sqrt{2}`"""
+    r"""Return :math:`x \sqrt{2}`"""
     return x * math.sqrt(2)
 
 def amplitude_to_rms(x):
-    """Return :math:`x / \sqrt{2}`"""
+    r"""Return :math:`x / \sqrt{2}`"""
     return x / math.sqrt(2)

tasks/release.py

@@ -90,7 +90,7 @@ def update_git_sha(ctx):
         version = version.replace('-branched', '')
     else:
         version = tag
-    if not re.match('\d+(\.\d+(\.\d+)?)?', version):
+    if not re.match(r'\d+(\.\d+(\.\d+)?)?', version):
         raise ValueError('Invalid version {}'.format(version))
     result = ctx.run('git rev-parse HEAD', hide='out')
     sha = result.stdout.strip()