diff --git a/.gitignore b/.gitignore
index 9d800a9..8b0481f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,237 +1,121 @@
-#################
-## Eclipse
-#################
-
-*.pydevproject
-.project
-.metadata
-bin/
-tmp/
-*.tmp
 *.bak
-*.swp
-*~.nib
-local.properties
-.classpath
-.settings/
-.loadpath
-# External tool builders
-.externalToolBuilders/
-
-# Locally stored "Eclipse launch configurations"
-*.launch
-
-# CDT-specific
-.cproject
-
-# PDT-specific
-.buildpath
-
-
-#################
-## Visual Studio
-#################
-
-## Ignore Visual Studio temporary files, build results, and
-## files generated by popular Visual Studio add-ons.
-
-# User-specific files
-*.suo
-*.user
-*.sln.docstates
-
-# Build results
-
-[Dd]ebug/
-[Rr]elease/
-x64/
+### Python template
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+env/
 build/
-[Bb]in/
-[Oo]bj/
-
-# MSTest test Results
-[Tt]est[Rr]esult*/
-[Bb]uild[Ll]og.*
-
-*_i.c
-*_p.c
-*.ilk
-*.meta
-*.obj
-*.pch
-*.pdb
-*.pgc
-*.pgd
-*.rsp
-*.sbr
-*.tlb
-*.tli
-*.tlh
-*.tmp
-*.tmp_proj
-*.log
-*.vspscc
-*.vssscc
-.builds
-*.pidb
-*.log
-*.scc
-
-# Visual C++ cache files
-ipch/
-*.aps
-*.ncb
-*.opensdf
-*.sdf
-*.cachefile
-
-# Visual Studio profiler
-*.psess
-*.vsp
-*.vspx
-
-# Guidance Automation Toolkit
-*.gpState
-
-# ReSharper is a .NET coding add-in
-_ReSharper*/
-*.[Rr]e[Ss]harper
-
-# TeamCity is a build add-in
-_TeamCity*
-
-# DotCover is a Code Coverage Tool
-*.dotCover
-
-# NCrunch
-*.ncrunch*
-.*crunch*.local.xml
-
-# Installshield output folder
-[Ee]xpress/
-
-# DocProject is a documentation generator add-in
-DocProject/buildhelp/
-DocProject/Help/*.HxT
-DocProject/Help/*.HxC
-DocProject/Help/*.hhc
-DocProject/Help/*.hhk
-DocProject/Help/*.hhp
-DocProject/Help/Html2
-DocProject/Help/html
-
-# Click-Once directory
-publish/
-
-# Publish Web Output
-*.Publish.xml
-*.pubxml
-
-# NuGet Packages Directory
-## TODO: If you have NuGet Package Restore enabled, uncomment the next line
-#packages/
-
-# Windows Azure Build Output
-csx
-*.build.csdef
-
-# Windows Store app package directory
-AppPackages/
-
-# Others
-sql/
-*.Cache
-ClientBin/
-[Ss]tyle[Cc]op.*
-~$*
-*~
-*.dbmdl
-*.[Pp]ublish.xml
-*.pfx
-*.publishsettings
-
-# RIA/Silverlight projects
-Generated_Code/
-
-# Backup & report files from converting an old project file to a newer
-# Visual Studio version. Backup files are not needed, because we have git ;-)
-_UpgradeReport_Files/
-Backup*/
-UpgradeLog*.XML
-UpgradeLog*.htm
-
-# SQL Server files
-App_Data/*.mdf
-App_Data/*.ldf
-
-#############
-## Windows detritus
-#############
-
-# Windows image file caches
-Thumbs.db
-ehthumbs.db
-
-# Folder config file
-Desktop.ini
-
-# Recycle Bin used on file shares
-$RECYCLE.BIN/
-
-# Mac crap
-.DS_Store
-
-
-#############
-## Python
-#############
-
-*.py[co]
-
-# Packages
-*.egg
-*.egg-info
+develop-eggs/
 dist/
-build/
+downloads/
 eggs/
+.eggs/
+lib/
+lib64/
 parts/
-var/
 sdist/
-develop-eggs/
+var/
+*.egg-info/
 .installed.cfg
+*.egg
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
 
 # Installer logs
 pip-log.txt
+pip-delete-this-directory.txt
 
 # Unit test / coverage reports
+htmlcov/
+.tox/
 .coverage
-.tox
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*,cover
 
-#Translations
+# Translations
 *.mo
+*.pot
+
+# Django stuff:
+*.log
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+### JetBrains template
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio
 
-#Mr Developer
-.mr.developer.cfg
-log/
-data/
-# python byte code
-*.pyc
-
-#############
-## Sublime
-#############
-# Ignore production server environment files
-uwsgi_params
-# sublime text
-*.sublime-workspace
-
-
-#############
-## Idea
-#############
-.idea
-.idea/
-*.eml
 *.iml
 
-doc/
\ No newline at end of file
+## Directory-based project format:
+.idea/
+# if you remove the above rule, at least ignore the following:
+
+# User-specific stuff:
+# .idea/workspace.xml
+# .idea/tasks.xml
+# .idea/dictionaries
+
+# Sensitive or high-churn files:
+# .idea/dataSources.ids
+# .idea/dataSources.xml
+# .idea/sqlDataSources.xml
+# .idea/dynamic.xml
+# .idea/uiDesigner.xml
+
+# Gradle:
+# .idea/gradle.xml
+# .idea/libraries
+
+# Mongo Explorer plugin:
+# .idea/mongoSettings.xml
+
+## File-based project format:
+*.ipr
+*.iws
+
+## Plugin-specific files:
+
+# IntelliJ
+/out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+### Java template
+*.class
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.ear
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+
diff --git a/049 Anagrams.py b/049 Anagrams.py
index 7f7e636..d1a3f11 100644
--- a/049 Anagrams.py	
+++ b/049 Anagrams.py	
@@ -4,6 +4,8 @@
 Note: All inputs will be in lower-case.
 """
 __author__ = 'Danyang'
+
+
 class Solution:
     def anagrams_complicated(self, strs):
         """
@@ -13,13 +15,12 @@ def anagrams_complicated(self, strs):
         """
         temp = list(strs)
         for ind, string in enumerate(temp):
-            if string and string!="":  # avoid case of empty string
+            if string and string != "":  # avoid case of empty string
                 string = [char for char in string]
                 string.sort()
                 string = "".join(string)
                 temp[ind] = string
 
-
         hash_map = {}
         for ind, string in enumerate(temp):
             indexes = hash_map.get(string, [])
@@ -28,7 +29,7 @@ def anagrams_complicated(self, strs):
 
         result = []
         for val in hash_map.values():
-            if len(val)>1:
+            if len(val) > 1:
                 # result.append([strs[i] for i in val])
                 result += [strs[i] for i in val]
         return result
@@ -46,16 +47,17 @@ def anagrams(self, strs):
                 hash_map[string] = [ind]
             else:
                 hash_map[string].append(ind)
-            # indexes = hash_map.get(string, [])
-            # indexes.append(ind)  # side-effect
-            # hash_map[string] = indexes  # reassign
+                # indexes = hash_map.get(string, [])
+                # indexes.append(ind)  # side-effect
+                # hash_map[string] = indexes  # reassign
 
         result = []
         for val in hash_map.values():
-            if len(val)>1:
+            if len(val) > 1:
                 # result.append([strs[i] for i in val])
                 result += [strs[i] for i in val]
         return result
 
-if __name__=="__main__":
-    Solution().anagrams(["", ""])
\ No newline at end of file
+
+if __name__ == "__main__":
+    Solution().anagrams(["", ""])