diff --git a/py-packages/Makefile b/py-packages/Makefile
index efe52e5..bfb1c65 100644
--- a/py-packages/Makefile
+++ b/py-packages/Makefile
@@ -21,9 +21,11 @@ clean: ## Clean build and .egg folder in py modules
 pipx: ## Install all packages with pipx
 	for module in *; do if [ -f $$module/setup.py ]; then pipx install $$module; fi; done
 
+format: ## Reformat packages with black
+	black SimpleWebPage/
+	black TSVFilter/
+	black markslider/
 
-packages: clean ## Create packages for every module
-	for module in *; do if [ -f $$module/setup.py ]; then tar czf $$module.tgz $$module; fi; done
 
 tar-SimpleWebPage: clean ## Create package for SimpleWebPage
 	tar czf SimpleWebPage.tgz SimpleWebPage/
diff --git a/py-packages/SimpleWebPage/setup.py b/py-packages/SimpleWebPage/setup.py
index 21d8844..7199ac9 100644
--- a/py-packages/SimpleWebPage/setup.py
+++ b/py-packages/SimpleWebPage/setup.py
@@ -1,11 +1,13 @@
 from distutils.core import setup
 
-def version_reader(path):
-    for line in open(path,"rt").read(1024).split("\n"):
-        if line.startswith("VERSION"):
-            return line.split("=")[1].strip().replace('"',"")
 
-version = version_reader(os.path.join("simplewebpage","__init__.py"))
+def version_reader(path):
+    for line in open(path, "rt").read(1024).split("\n"):
+        if line.startswith("VERSION"):
+            return line.split("=")[1].strip().replace('"', "")
+
+
+version = version_reader(os.path.join("simplewebpage", "__init__.py"))
 setup(
     name="SimpleWebPage",
     packages=["simplewebpage"],
@@ -19,7 +21,5 @@ setup(
             "SimpleWebPage=simplewebpage:main",
         ],
     },
-    install_requires = [
-        'markdown>=3.3.4'
-    ]
+    install_requires=["markdown>=3.3.4"],
 )
diff --git a/py-packages/markslider/markslider/ansicodes.py b/py-packages/markslider/markslider/ansicodes.py
index 7dbfebe..2bc1012 100644
--- a/py-packages/markslider/markslider/ansicodes.py
+++ b/py-packages/markslider/markslider/ansicodes.py
@@ -89,15 +89,15 @@ class code:
     custom_match = re.compile(r"(\${)([0-9;]*[ABCDEFGHJKSTfminsu]+)(})")
 
     def pos(self, y, x):
-        """ Go to absolute position """
+        """Go to absolute position"""
         return "\033[" + str(y) + ";" + str(x) + "H"
 
     def column(self, x):
-        """ Go to absolute column """
+        """Go to absolute column"""
         return "\033[" + str(x) + "G"
 
     def posprint(self, y, x, s):
-        """ Print string at a location """
+        """Print string at a location"""
         sys.stdout.write(self.pos(y, x) + str(s))
         self.flush()
 
@@ -129,11 +129,11 @@ class code:
         sys.stdout.write("\033[" + str(n) + "E")
 
     def save(self):
-        """ Save cursor position """
+        """Save cursor position"""
         sys.stdout.write("\033[s")
 
     def restore(self):
-        """ Restore cursor position """
+        """Restore cursor position"""
         sys.stdout.write("\033[u")
 
     def color_string(self, s):
@@ -160,7 +160,7 @@ class code:
 
 
 def demo():
-    """ Print all control sequences """
+    """Print all control sequences"""
     c = code()
     unformatted = """${S}ANSI CODES
 ==========${Z}
diff --git a/py-packages/markslider/markslider/markslider.py b/py-packages/markslider/markslider/markslider.py
index 6316506..d211749 100755
--- a/py-packages/markslider/markslider/markslider.py
+++ b/py-packages/markslider/markslider/markslider.py
@@ -28,6 +28,7 @@ import traceback, tty, termios, subprocess, signal
 
 sys.path.append(os.path.dirname(os.path.realpath(__file__)))
 import ansicodes, md_color
+
 try:
     import climage
 except ImportError:
@@ -50,13 +51,13 @@ class getch:
 
 
 class EndProgram(Exception):
-    """ Nice exit """
+    """Nice exit"""
 
     pass
 
 
 class slide_reader:
-    """ Class for reading files. """
+    """Class for reading files."""
 
     def __init__(self, files, opts):
         self.filename = files[0]
@@ -86,7 +87,7 @@ class slide_reader:
                 self.pygments = False
 
     def read(self):
-        """ Read a file, set pages and data """
+        """Read a file, set pages and data"""
 
         self.pages = 0
         self.background = []
@@ -234,7 +235,7 @@ class slide_reader:
             self.file_start_page = [1 + i for i in self.file_start_page]
 
     def generate_content(self, s):
-        """ Check for launchable items, or converted images """
+        """Check for launchable items, or converted images"""
         if self.opts.execute_read:
             if s.find("`>") > -1:
                 command = self.re_command.match(s)
@@ -278,7 +279,13 @@ class slide_reader:
         width = max(5, self.scrsize[1] - 10)
         output = climage.convert(
             image.group(3),
-            is_unicode=True, is_truecolor=True, is_256color=False, is_16color=False, is_8color=False, width=width, palette="default"
+            is_unicode=True,
+            is_truecolor=True,
+            is_256color=False,
+            is_16color=False,
+            is_8color=False,
+            width=width,
+            palette="default",
         )
         output = output.split("\n")
         while len(output[0].strip()) == 0:
@@ -375,7 +382,7 @@ def get_interactive_help_text():
 
 
 def setup_options():
-    """ Create command line options """
+    """Create command line options"""
     usage = (
         """
 MarkSlider: a markdown based slideshow engine
@@ -563,7 +570,7 @@ Keyboard shortcuts:
 
 
 def page_print(reader, opts, offset):
-    """ Print a page """
+    """Print a page"""
 
     page = reader.get_current_page()
     scrsize = opts.size
@@ -678,7 +685,7 @@ def print_time(opts):
 
 
 def print_help(reader, opts):
-    """ Create a window with help message """
+    """Create a window with help message"""
     helptext = get_interactive_help_text().split("\n")
     maxlen = max([len(x) for x in helptext])
     bc.posprint(3, 5, " +" + "-" * maxlen + "+ ")
@@ -697,7 +704,7 @@ def print_help(reader, opts):
 
 
 def print_toc(reader, opts):
-    """ Create a window with TOC """
+    """Create a window with TOC"""
     text = reader.get_toc(display_position=True)
     title = opts.toc if opts.toc else "Table of Contents"
     maxlen = max([len(x) for x in text])
@@ -720,7 +727,7 @@ def print_toc(reader, opts):
 
 
 def offset_change(opts, reader, offset, new_offset):
-    """ Change the display position of page """
+    """Change the display position of page"""
     new_offset = (offset[0] + new_offset[0], offset[1] + new_offset[1])
     offsety = min(reader.get_page_height() - 1, new_offset[0])
     offseth = min(reader.get_page_height(), new_offset[1])
@@ -740,7 +747,7 @@ def getkeypress():
 
 
 def browser(opts, files):
-    """ Main function for printing """
+    """Main function for printing"""
 
     try:
         reader = slide_reader(files, opts)
@@ -846,7 +853,7 @@ def get_console_size():
 
 
 def colorify(s, opts):
-    """ Add colors to string """
+    """Add colors to string"""
     if not opts.color:
         return bc.nocolor_string(s)
     c = bc.color_string(s)  # +bc.Z
@@ -854,14 +861,14 @@ def colorify(s, opts):
 
 
 def cut_line(s, i):
-    """ cut a color tagged string, and remove control chars """
+    """cut a color tagged string, and remove control chars"""
     s = s[:i]
     s = re.sub("\$$", "", re.sub("\$\{$", "", re.sub("\$\{.$", "", s)))
     return s
 
 
 def add_highlight(s, opts):
-    """ Add cursor position highlight """
+    """Add cursor position highlight"""
     if len(s.strip()) == 0:
         cleaned = HL
     else:
diff --git a/py-packages/markslider/markslider/md_color.py b/py-packages/markslider/markslider/md_color.py
index 9b82aeb..3b5bd6f 100755
--- a/py-packages/markslider/markslider/md_color.py
+++ b/py-packages/markslider/markslider/md_color.py
@@ -157,7 +157,7 @@ def colorize(data, remove_colors=False, dark_colors=False, debug=False):
 
 
 def md_re_compile(d):
-    """ Returns a re.compiled dict """
+    """Returns a re.compiled dict"""
     n = {}
     for t in d:
         n[t] = {}
diff --git a/py-packages/markslider/setup.py b/py-packages/markslider/setup.py
index 41421a3..5f84861 100644
--- a/py-packages/markslider/setup.py
+++ b/py-packages/markslider/setup.py
@@ -16,8 +16,6 @@ setup(
     author="Ville Rantanen",
     author_email="ville.q.rantanen@gmail.com",
     keywords=["Markdown", "Slideshow"],
-    entry_points = {'console_scripts': 'markslider = markslider.markslider:main'},
-    install_requires = [
-        'pygments', 'climage'
-    ]
+    entry_points={"console_scripts": "markslider = markslider.markslider:main"},
+    install_requires=["pygments", "climage"],
 )