couple of typos in comments

jinja2/environment.py

@@ -67,7 +67,7 @@ def copy_cache(cache):
 
 def load_extensions(environment, extensions):
     """Load the extensions from the list and bind it to the environment.
-    Returns a dict of instanciated environments.
+    Returns a dict of instantiated environments.
     """
     result = {}
     for extension in extensions:
@@ -239,7 +239,7 @@ def __init__(self,
         #   passed by keyword rather than position.  However it's important to
         #   not change the order of arguments because it's used at least
         #   internally in those cases:
-        #       -   spontaneus environments (i18n extension and Template)
+        #       -   spontaneous environments (i18n extension and Template)
         #       -   unittests
         #   If parameter changes are required only add parameters at the end
         #   and don't change the arguments (or the defaults!) of the arguments
@@ -435,15 +435,15 @@ def _tokenize(self, source, name, filename=None, state=None):
         return stream
 
     def _generate(self, source, name, filename, defer_init=False):
-        """Internal hook that can be overriden to hook a different generate
+        """Internal hook that can be overridden to hook a different generate
         method in.
 
         .. versionadded:: 2.5
         """
         return generate(source, self, name, filename, defer_init=defer_init)
 
     def _compile(self, source, filename):
-        """Internal hook that can be overriden to hook a different compile
+        """Internal hook that can be overridden to hook a different compile
         method in.
 
         .. versionadded:: 2.5
@@ -1053,7 +1053,7 @@ def __init__(self, gen):
     def dump(self, fp, encoding=None, errors='strict'):
         """Dump the complete stream into a file or file-like object.
         Per default unicode strings are written, if you want to encode
-        before writing specifiy an `encoding`.
+        before writing specify an `encoding`.
 
         Example usage::
 

jinja2/lexer.py

@@ -414,7 +414,7 @@ def __init__(self, environment):
             (operator_re, TOKEN_OPERATOR, None)
         ]
 
-        # assamble the root lexing rule. because "|" is ungreedy
+        # assemble the root lexing rule. because "|" is ungreedy
         # we have to sort by length so that the lexer continues working
         # as expected when we have parsing rules like <% for block and
         # <%= for variables. (if someone wants asp like syntax)
@@ -491,7 +491,7 @@ def __init__(self, environment):
         }
 
     def _normalize_newlines(self, value):
-        """Called for strings and template data to normlize it to unicode."""
+        """Called for strings and template data to normalize it to unicode."""
         return newline_re.sub(self.newline_sequence, value)
 
     def tokenize(self, source, name=None, filename=None, state=None):
@@ -571,7 +571,7 @@ def tokeniter(self, source, name, filename=None, state=None):
                 if m is None:
                     continue
 
-                # we only match blocks and variables if brances / parentheses
+                # we only match blocks and variables if braces / parentheses
                 # are balanced. continue parsing with the lower rule which
                 # is the operator rule. do this only if the end tags look
                 # like operators
@@ -669,7 +669,7 @@ def tokeniter(self, source, name, filename=None, state=None):
                 # publish new function and start again
                 pos = pos2
                 break
-            # if loop terminated without break we havn't found a single match
+            # if loop terminated without break we haven't found a single match
             # either we are at the end of the file or we have a problem
             else:
                 # end of text

jinja2/parser.py

@@ -223,7 +223,7 @@ def parse_block(self):
         # raise a nicer error message in that case.
         if self.stream.current.type == 'sub':
             self.fail('Block names in Jinja have to be valid Python '
-                      'identifiers and may not contain hypens, use an '
+                      'identifiers and may not contain hyphens, use an '
                       'underscore instead.')
 
         node.body = self.parse_statements(('name:endblock',), drop_needle=True)