diff --git a/.gitignore b/.gitignore
index 8154844..b0080ea 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@
 *.egg-info
 /build/
 /dist/
+.*
\ No newline at end of file
diff --git a/fabfile.py b/fabfile.py
index bed5cac..2e439f5 100644
--- a/fabfile.py
+++ b/fabfile.py
@@ -1,7 +1,5 @@
-from fabpolish import polish, update_sniff
-from fabpolish.contrib import (
-    find_merge_conflict_leftovers,
-    find_pep8_violations
-)
+""" This is a testing file. """
+from fabpolish import update_sniff
+from fabpolish.contrib import find_pep8_violations
 
 update_sniff(find_pep8_violations, severity='major', timing='fast')
diff --git a/fabpolish/__init__.py b/fabpolish/__init__.py
index 0db4425..e5c5478 100644
--- a/fabpolish/__init__.py
+++ b/fabpolish/__init__.py
@@ -1,3 +1,4 @@
+"""init for package import."""
 import os
 import sys
 
@@ -15,6 +16,7 @@
 
 
 def info(text):
+    """Get information about input."""
     puts(green(text))
 
 
@@ -34,14 +36,16 @@ def validate_timing(timing):
 
 
 def sniff(*args, **kwargs):
-    """ Decorator to collect sniffs and execute on polish
-        :param severity: Keyword argument only.
-                         One of 'critical', 'major', 'minor', 'info'
-                         Default: 'critical'
-        :type severity: str
-        :param timing: Keyword argument only. One of 'slow', 'fast'
-                       Default: 'fast'
-        :type timing: str
+    """
+    Decorate to collect sniffs and execute on polish.
+
+    :param severity: Keyword argument only.
+                        One of 'critical', 'major', 'minor', 'info'
+                        Default: 'critical'
+    :type severity: str
+    :param timing: Keyword argument only. One of 'slow', 'fast'
+                    Default: 'fast'
+    :type timing: str
     """
     DEFAULT_SEVERITY = 'critical'
     DEFAULT_TIMING = 'fast'
@@ -68,7 +72,9 @@ def wrapper(*args, **kwargs):
 
 @task
 def polish(env='dev'):
-    """Polish code by running some or all sniffs
+    """
+    Polish code by running some or all sniffs.
+
     :param env: Environment to determine what all sniffs to run
                 Options: 'dev', 'ci'
                 Default: 'dev'
@@ -78,23 +84,27 @@ def polish(env='dev'):
     When environment is 'dev', only fast-critical and fast-major
     sniffs are run.
     """
+    def check(sniff):
+        """
+        Check function name in frabic_tasks and not fast also note
+        severity critical or major.
+        """
+        return sniff['function'].name not in fabric_tasks or \
+            sniff['timing'] != 'fast' or \
+            sniff['severity'] not in ('critical', 'major')
+
     fabric_tasks = list_commands('', 'short')
     results = list()
     with settings(warn_only=True):
+        sniffs_to_run = []
         if env == 'ci':
-            sniffs_to_run = []
-            for sniff in _sniffs:
-                if sniff['function'].name not in fabric_tasks:
-                    continue
+            for sniff in filter(
+                lambda each: each['function'].name in fabric_tasks, _sniffs
+            ):
                 sniffs_to_run.append(sniff)
         elif env == 'dev':
-            sniffs_to_run = []
             for sniff in _sniffs:
-                if sniff['function'].name not in fabric_tasks:
-                    continue
-                if sniff['timing'] != 'fast':
-                    continue
-                if sniff['severity'] not in ('critical', 'major'):
+                if check(sniff):
                     continue
                 sniffs_to_run.append(sniff)
         else:
@@ -107,10 +117,12 @@ def polish(env='dev'):
 
 
 def update_sniff(function, severity=None, timing=None):
-    if type(function) == str:
+    """Update sniff dict."""
+    if isinstance(function, str):
         function_name = function
     else:
         function_name = function.name
+    sniff = {}
     for sniff in _sniffs:
         if sniff['function'].name == function_name:
             break
diff --git a/fabpolish/contrib.py b/fabpolish/contrib.py
index 2c428a2..0e1b57e 100644
--- a/fabpolish/contrib.py
+++ b/fabpolish/contrib.py
@@ -1,33 +1,32 @@
+"""checks on various features."""
 from fabpolish import sniff, info, local
 
 
 @sniff(severity='critical', timing='fast')
 def find_merge_conflict_leftovers():
-    """Find Merge conflict leftovers
-    """
+    """Find Merge conflict leftovers."""
     info('Finding merge conflict leftovers...')
     return local("! git grep -P '^(<|=|>){7}(?![<=>])'")
 
 
 @sniff(severity='major', timing='slow')
 def find_php_syntax_errors():
-    """Find syntax error in php files
-    """
+    """Find syntax error in php files."""
     info('Finding syntax error in php files...')
     return local(
         "git ls-files -z | "
-        "grep -PZz '\.(php|phtml)$' | "
+        "grep -PZz '\\.(php|phtml)$' | "
         "xargs -0 -n 1 php -l >/tmp/debug"
     )
 
 
 @sniff(severity='major', timing='fast')
 def python_code_analyzer():
-    """Running static code analyzer"""
+    """Run static code analyzer."""
     info('Running static code analyzer')
     return local(
         "git ls-files -z | "
-        "grep -PZz '\.py$' | "
+        "grep -PZz '\\.py$' | "
         "grep -PZvz 'fabfile.py' | "
         "xargs -0 pyflakes"
     )
@@ -35,44 +34,44 @@ def python_code_analyzer():
 
 @sniff(severity='minor', timing='slow')
 def find_pep8_violations():
-    """Run pep8 python coding standard check
-    """
+    """Run pep8 python coding standard check."""
     info('Running coding standards check for python files...')
     return local(
         "git ls-files -z | "
-        "grep -PZz '\.py$' | "
+        "grep -PZz '\\.py$' | "
         "xargs -0 pep8"
     )
 
 
 @sniff(severity='major', timing='fast')
 def fix_file_permission():
-    """Fixing permissions for files"""
+    """Fix permissions for files."""
     info('Fixing permissions for files')
     return local(
         "git ls-files -z | "
-        "grep -PvZz '\.sh$' | "
+        "grep -PvZz '\\.sh$' | "
         "xargs -0 chmod -c 0664 > /dev/null 2>&1"
     )
 
 
 @sniff(severity='major', timing='fast')
 def fix_script_permission():
-    # Fix script permissions
+    """Fix script permissions."""
     info('Fixing script permissions...')
     return local(
         "git ls-files -z | "
-        "grep -PZz '\.sh$' | "
+        "grep -PZz '\\.sh$' | "
         "xargs -0 -r chmod 0775 >/dev/null 2>&1"
     )
 
 
 @sniff(severity='major', timing='fast')
 def fix_white_space():
+    """Fix White spaces."""
     info('Fixing whitespace errors...')
     return local(
         "git ls-files -z | "
-        "grep -PZvz '\.(ico|jpg|png|gif|eot|ttf|woff|wav|xlxs)$' | "
+        "grep -PZvz '\\.(ico|jpg|png|gif|eot|ttf|woff|wav|xlxs)$' | "
         "xargs -0 grep -PlZn '(\\s+$)|(\\t)' | "
         "tee /dev/stderr | "
         "xargs -0 -r sed -i -e 's/\\s\\+$//' "
@@ -81,10 +80,11 @@ def fix_white_space():
 
 @sniff(severity='major', timing='fast')
 def convert_tab_spaces():
+    """Convert all tabe to spaces."""
     info('Converting tab to spaces...')
     return local(
         "git ls-files -z | "
-        "grep -PZvz '\.(ico|jpg|png|gif|eot|ttf|woff|wav|xlxs)$' | "
+        "grep -PZvz '\\.(ico|jpg|png|gif|eot|ttf|woff|wav|xlxs)$' | "
         "xargs -0 grep -PlZn '(\\s+$)|(\\t)' | "
         "tee /dev/stderr | "
         "xargs -0 -r sed -i -e 's/\\t/    /g' "
@@ -93,19 +93,19 @@ def convert_tab_spaces():
 
 @sniff(severity='critical', timing='fast')
 def check_migration_branch():
-    """Checking migration branches"""
+    """Check migration branches."""
     info('Checking migration branches...')
     return local("! alembic branches | grep branchpoint")
 
 
 @sniff(severity='major', timing='fast')
 def check_python_debug_info():
-    """Check and remove debugging print statements"""
+    """Check and remove debugging print statements."""
     info('Checking for debug print statements')
     return local(
         "! git ls-files -z | "
         "grep -PZvz 'fabfile.py' | "
-        "grep -PZz \.py$ | "
+        "grep -PZz \\.py$ | "
         "xargs -0 grep -Pn \'(?<![Bb]lue|>>> )print\' | "
         "grep -v NOCHECK"
     )
@@ -113,6 +113,7 @@ def check_python_debug_info():
 
 @sniff(severity='major', timing='fast')
 def check_php_debug_info():
+    """Check for var echo or dump in php scripts."""
     info('Checking for var_dump, echo or die statements...')
     return local(
         "! find ./src -name '*.php' -print0 | "
@@ -122,6 +123,7 @@ def check_php_debug_info():
 
 @sniff(severity='major', timing='fast')
 def check_image_edited():
+    """Avoide Browser cashing during image update."""
     # Check if image files have been edited
     info('Checking if image files have been edited...')
     info('Explanation: A new image should be created when '
@@ -130,28 +132,31 @@ def check_image_edited():
     return local(
         '! git diff master...' + branch +
         ' --name-only --diff-filter=M | ' +
-        'grep ".gif\|.png\|.jpg"'
+        'grep ".gif\\|.png\\|.jpg"'
     )
 
 
 @sniff(severity='critical', timing='fast')
 def composer_validate():
+    """Run composer validate."""
     info('Running composer validate...')
     return local('composer validate')
 
 
 @sniff(severity='major', timing='fast')
 def run_eslint():
+    """Run ESLint."""
     info('Running ESLint...')
     return local(
         "git ls-files | "
-        "grep '\.js$' | "
+        "grep '\\.js$' | "
         "xargs ./node_modules/eslint/bin/eslint.js"
     )
 
 
 @sniff(severity='major', timing='fast')
 def check_preg_replace():
+    """Use of preg_replace checks."""
     info('Checking use of preg_replace...')
     return local(
         "! find src -name '*.php' -print0 | "
diff --git a/setup.py b/setup.py
index 4dbddd7..8d70077 100644
--- a/setup.py
+++ b/setup.py
@@ -1,3 +1,4 @@
+"""This is setup.py. Ment for installation of package."""
 from setuptools import setup
 
 setup(name='fab-polish',