Fix bug when escaping non-strings

.gitignore

@@ -9,3 +9,4 @@ docs/build
 .cache
 *.egg-info
 .eggs
+dist/

docs/source/conf.py

@@ -63,7 +63,7 @@
 # The short X.Y version.
 version = '0.1'
 # The full version, including alpha/beta/rc tags.
-release = '0.1.0a1'
+release = '0.1.0a2'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.

inflow/utils.py

@@ -1,3 +1,5 @@
+import six
+
 __all__ = ['to_comma_separated_string', 'escape']
 
 
@@ -25,6 +27,9 @@ def escape(characters, string):
     If a non-string is given to be escaped, we return the non-string without
     escaping.
     """
+    if not isinstance(string, six.string_types):
+        return string
+
     for char in characters:
         string = string.replace(char, '\\' + char)
     return string

setup.py

@@ -8,7 +8,7 @@
 
 setup(
     name='inflow',
-    version='0.1.0a1',
+    version='0.1.0a2',
     author='Jaap Broekhuizen',
     author_email='broekhuizen@baopt.nl',
     description='A simple InfluxDB client library.',

tests/test_utils.py

@@ -0,0 +1,5 @@
+from inflow.utils import escape
+
+
+def test_escape_skip_nonstrings():
+    assert escape([], 10) == 10