Fix misspellings

CHANGES.rst

@@ -129,7 +129,7 @@ v20.8.0
 v20.7.0
 -------
 
-* Refactored extra enviroment marker processing
+* Refactored extra environment marker processing
   in WorkingSet.
 * Issue #533: Fixed intermittent test failures.
 * Issue #536: In msvc9_support, trap additional exceptions
@@ -216,7 +216,7 @@ v20.6.0
 20.2.1
 ------
 
-* Issue #499: Restore compatiblity for legacy versions
+* Issue #499: Restore compatibility for legacy versions
   by bumping to packaging 16.4.
 
 20.2

docs/easy_install.txt

@@ -577,7 +577,7 @@ activated or deactivated.
 As a result, if you are using EasyInstall to upgrade an existing package, or
 to install a package with the same name as an existing package, EasyInstall
 will warn you of the conflict.  (This is an improvement over ``setup.py
-install``, becuase the ``distutils`` just install new packages on top of old
+install``, because the ``distutils`` just install new packages on top of old
 ones, possibly combining two unrelated packages or leaving behind modules that
 have been deleted in the newer version of the package.)
 
@@ -606,7 +606,7 @@ can be safely installed as a zipfile, and then acts on its analysis.  (Previous
 versions would not install a package as a zipfile unless you used the
 ``--zip-ok`` option.)
 
-The current analysis approach is fairly conservative; it currenly looks for:
+The current analysis approach is fairly conservative; it currently looks for:
 
  * Any use of the ``__file__`` or ``__path__`` variables (which should be
    replaced with ``pkg_resources`` API calls)

pkg_resources/__init__.py

@@ -1367,7 +1367,7 @@ def get_default_cache():
             return os.path.join(dirname, 'Python-Eggs')
     else:
         raise RuntimeError(
-            "Please set the PYTHON_EGG_CACHE enviroment variable"
+            "Please set the PYTHON_EGG_CACHE environment variable"
         )
 
 def safe_name(name):

pkg_resources/_vendor/packaging/specifiers.py

@@ -198,7 +198,7 @@ class _IndividualSpecifier(BaseSpecifier):
                         (prereleases or self.prereleases)):
                     found_prereleases.append(version)
                 # Either this is not a prerelease, or we should have been
-                # accepting prereleases from the begining.
+                # accepting prereleases from the beginning.
                 else:
                     yielded = True
                     yield version

pkg_resources/_vendor/pyparsing.py

@@ -1112,7 +1112,7 @@ class ParserElement(object):
               (see L{I{parseWithTabs}<parseWithTabs>})
             - define your parse action using the full C{(s,loc,toks)} signature, and
               reference the input string using the parse action's C{s} argument
-            - explictly expand the tabs in your input string before calling
+            - explicitly expand the tabs in your input string before calling
               C{parseString}
         """
         ParserElement.resetCache()