diff --git a/README.markdown b/README.markdown
index 0188b13..59b245b 100644
--- a/README.markdown
+++ b/README.markdown
@@ -2,18 +2,32 @@ Pybooru - Library for Danbooru API.
 ========================================================================
 Pybooru is a library for Python for access to API Danbooru / Moebooru based sites.
 
-Version: **2.0**<br />
+Version: **2.1**<br />
 Licensed under: **MIT License**
 
+Dependencies.
+-------------
+- Python: >= 2.7
+- [Simplejson](https://pypi.python.org/pypi/simplejson/) (Optional).
+
 Installation.
 ------------------------------------------------------------------------
-For installation Pybooru.
+Pypi - Python Package Index:
+[Pybooru on Pypi](https://pypi.python.org/pypi/Pybooru/).
+```bash
+sudo pip install Pybooru
+```
+or
+```bash
+sudo easy_install Pybooru
+```
 
+Manual installation:
 ```bash
-    git clone git://github.com/luquedaniel/pybooru.git
-    cd pybooru
-    sudo python setup.py build
-    sudo python setup.py install
+git clone git://github.com/luquedaniel/pybooru.git
+cd pybooru
+sudo python setup.py build
+sudo python setup.py install
 ```
 
 Example use.
@@ -31,6 +45,7 @@ for artist in artists:
 
 Login example.
 ------------------------------------------------------------------------
+Default sites:
 ```python
 from pybooru import Pybooru
 
@@ -39,5 +54,14 @@ client = Pybooru('Konachan', username='your-username', password='your-password')
 client.comments_create(post_id=id, comment_body='Comment content')
 ```
 
+Other sites:
+```python
+from pybooru import Pybooru
+
+client = Pybooru('konachan.com', username='your-username', password='your-password', hashString='So-I-Heard-You-Like-Mupkids-?--%s--')
+
+client.comments_create(post_id=id, comment_body='Comment content')
+```
+
 Special Thanks to.
 ------------------------------------------------------------------------
diff --git a/README.rst b/README.rst
new file mode 100644
index 0000000..c772dd0
--- /dev/null
+++ b/README.rst
@@ -0,0 +1,9 @@
+Pybooru is a library for Python for access to API Danbooru / Moebooru based sites.
+
+Version: 2.1 (stable).
+
+Changelog: https://github.com/LuqueDaniel/pybooru/blob/master/changelog.md
+
+More information: https://github.com/LuqueDaniel/pybooru/blob/master/README.markdown
+
+Github repository: https://github.com/LuqueDaniel/pybooru
diff --git a/changelog.md b/changelog.md
new file mode 100644
index 0000000..3421c05
--- /dev/null
+++ b/changelog.md
@@ -0,0 +1,8 @@
+Pybooru - Changelog
+===================
+
+. **Pybooru 2.1** - (10/14/2013)
+	- Added login suppport for any Moebooru based site.
+	- Fixed a bug: 22792a0
+	- Added new information in setup.py.
+	- Small changes.
\ No newline at end of file
diff --git a/clean_pycs.sh b/clean_pycs.sh
new file mode 100755
index 0000000..2350b82
--- /dev/null
+++ b/clean_pycs.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+
+find -iname '*.pyc' -delete
+
+fi
diff --git a/pybooru/__init__.py b/pybooru/__init__.py
index fd15b1a..67ef91f 100644
--- a/pybooru/__init__.py
+++ b/pybooru/__init__.py
@@ -6,8 +6,9 @@
 Under MIT license.
 """
 
-__author__ = 'Daniel Luque <danielluque14 at gmail dot com>'
-__version__ = '2.0'
+__author__ = 'Daniel Luque'
+__email__ = 'danielluque14 at gmail dot com'
+__version__ = '2.1'
 __url__ = 'http://github.com/LuqueDaniel/pybooru'
 
 #pybooru imports
diff --git a/pybooru/exceptions.py b/pybooru/exceptions.py
index 70d694e..159e206 100644
--- a/pybooru/exceptions.py
+++ b/pybooru/exceptions.py
@@ -3,7 +3,7 @@
 """
 
 #pybooru impost
-from .resources import http_status_codes
+from .resources import HTTP_STATUS_CODES
 
 
 class PybooruError(Exception):
@@ -25,11 +25,11 @@ def __init__(self, msg, http_code=None, url=None):
         self.http_code = http_code
         self.url = url
 
-        if (http_code is not None) and (http_code in http_status_codes) and (
+        if (http_code is not None) and (http_code in HTTP_STATUS_CODES) and (
             url is not None):
             self.msg = '%i: %s, %s -- %s -- URL: %s' % (http_code,
-                        http_status_codes[http_code][0],
-                        http_status_codes[http_code][1], self.msg, url)
+                        HTTP_STATUS_CODES[http_code][0],
+                        HTTP_STATUS_CODES[http_code][1], self.msg, url)
 
     def __str__(self):
         """This function return self.msg"""
diff --git a/pybooru/pybooru.py b/pybooru/pybooru.py
index 8d51c78..261635e 100755
--- a/pybooru/pybooru.py
+++ b/pybooru/pybooru.py
@@ -27,35 +27,39 @@
 #pyborru exceptions imports
 from .exceptions import PybooruError
 #pybooru resources imports
-from .resources import api_base_url
-from .resources import site_list
+from .resources import API_BASE_URL
+from .resources import SITE_LIST
 
 
 class Pybooru(object):
     """Pybooru class.
 
     init Parameters:
-        siteName: The site name in site_list.
+        siteName: The site name in SITE_LIST.
         siteURL: URL of based Danbooru site.
         username: Your username in site
                   (Required only for functions that modify the content).
-        password: Your user password
+        password: Your user password in plain text.
                   (Required only for functions that modify the content).
+        hashString: string that is hashed.
+                    (See the API of the site for more information).
 
     Attributes:
         siteName: Return site name.
         siteURL: Return URL of based danbooru site.
         username: Return user name.
-        password: Return password.
+        password: Return password in plain text.
+        hashString: Return hashString.
     """
 
     def __init__(self, siteName=None, siteURL=None, username=None,
-                 password=None):
+                 password=None, hashString=None):
 
         self.siteName = siteName
         self.siteURL = siteURL
         self.username = username
         self.password = password
+        self.hashString = hashString
 
         if (siteURL is not None) or (siteName is not None):
             if type(siteName) is str:
@@ -75,8 +79,8 @@ def _site_name(self, siteName):
                     in the resources module.
         """
 
-        if siteName in site_list.keys():
-            self.siteURL = site_list[siteName]['url']
+        if siteName in SITE_LIST.keys():
+            self.siteURL = SITE_LIST[siteName]['url']
         else:
             raise PybooruError(
                         'The site name is not valid, use siteURL parameter'
@@ -101,26 +105,33 @@ def _url_validator(self, url):
         self.siteURL = url
 
     def _json_load(self, api_name, params=None):
-        """Function for reading and returning JSON response.
+        """Function for read and return JSON response.
 
         Parameters:
             api_name: The NAME of the API function.
             params: The parameters of the API function.
         """
 
-        url = self.siteURL + api_base_url[api_name]['url']
+        url = self.siteURL + API_BASE_URL[api_name]['url']
 
         #Autentication
-        if api_base_url[api_name]['required_login'] is True:
-            if self.siteName in site_list.keys():
+        if API_BASE_URL[api_name]['required_login'] is True:
+            if (self.siteName in SITE_LIST.keys()) or (self.hashString is not None):
                 if (self.username is not None) and (self.password is not None):
                     #Set login parameter
                     params['login'] = self.username
 
                     #Create hashed string
-                    has_string = site_list[self.siteName]['hashed_string'] % (
-                                    self.password)
-
+                    if self.hashString is not None:
+                        try:
+                            has_string = self.hashString % (self.password)
+                        except TypeError:
+                            raise PybooruError('Use "%s" for hashString')
+                    else:
+                        has_string = SITE_LIST[self.siteName]['hashed_string'] % (
+                                        self.password)
+
+                    #Set password_hash parameter
                     #Convert hashed_string to SHA1 and return hex string
                     params['password_hash'] = hashlib.sha1(
                                                 has_string).hexdigest()
@@ -129,13 +140,17 @@ def _json_load(self, api_name, params=None):
                     raise PybooruError('username and password is required')
 
             else:
-                raise PybooruError('Login in %s unsupported' % self.siteName)
+                raise PybooruError('Login in %s unsupported, please use hashString' % self.siteName)
 
         #JSON request
         try:
-            #urlopen() from module urllib2
-            #urlencode() from module urllib
-            openURL = urlopen(url, urlencode(params))
+            if params is not None:
+                #urlopen() from module urllib2
+                #urlencode() from module urllib
+                openURL = urlopen(url, urlencode(params))
+            else:
+                openURL = urlopen(url)
+
             reading = openURL.read()
             #loads() is a function of simplejson module
             response = loads(reading)
diff --git a/pybooru/resources.py b/pybooru/resources.py
index b77f440..afcfae6 100644
--- a/pybooru/resources.py
+++ b/pybooru/resources.py
@@ -7,7 +7,7 @@
 """
 
 #site_list
-site_list = {
+SITE_LIST = {
              'konachan': {
                  'url': 'http://konachan.com',
                  'hashed_string': 'So-I-Heard-You-Like-Mupkids-?--%s--'},
@@ -19,7 +19,7 @@
 
 
 #api_base_url for the API functions
-api_base_url = {
+API_BASE_URL = {
     'posts_list': {
         'url': '/post.json',
         'required_login': False},
@@ -144,7 +144,7 @@
 
 
 #http_status_codes
-http_status_codes = {
+HTTP_STATUS_CODES = {
     200: ('OK', 'Request was successful'),
     403: ('Forbidden', 'Access denied'),
     404: ('Not Found', 'Not found'),
diff --git a/setup.py b/setup.py
index 998cdaf..9339d63 100644
--- a/setup.py
+++ b/setup.py
@@ -1,19 +1,36 @@
 #!/usr/bin/env python
 
+#setuptools imports
 from setuptools import setup
 from setuptools import find_packages
 
-__author__ = 'Daniel Luque <danielluque14 at gmail dot com>'
-__version__ = '2.0'
+#pybooru imports
+import pybooru
+
+
+with open('README.rst', 'r') as f:
+    LONG_DESCRIPTION = f.read()
+
 
 setup(
     name='Pybooru',
-    version=__version__,
-    author=__author__,
+    version=pybooru.__version__,
+    author=pybooru.__author__,
+    description="Pybooru is a library for Python for access to API Danbooru / Moebooru based sites.",
+    long_description=LONG_DESCRIPTION,
     author_email="danielluque14 at gmail dot com",
     url="https://github.com/LuqueDaniel/pybooru",
     license="MIT License",
+    keywords='Pybooru moebooru danbooru API',
+    classifiers=[
+        'Development Status :: 5 - Production/Stable',
+        'Intended Audience :: Developers',
+        'License :: OSI Approved :: MIT License',
+        'Topic :: Software Development :: Libraries :: Python Modules',
+        'Topic :: Internet'
+        ],
+    platforms=['any'],
+    install_requires=['simplejson'],
     packages=find_packages(),
     include_package_data=True,
-    install_requires=['simplejson'],
 )