diff --git a/pywal/__main__.py b/pywal/__main__.py
index dbca515..412a6d4 100644
--- a/pywal/__main__.py
+++ b/pywal/__main__.py
@@ -84,14 +84,14 @@ def process_args(args):
         sys.exit(1)
 
     if args.v:
-        print(f"wal {__version__}")
+        print("wal %s" % __version__)
         sys.exit(0)
 
     if args.q:
         sys.stdout = sys.stderr = open(os.devnull, "w")
 
     if args.c:
-        shutil.rmtree(CACHE_DIR / "schemes", ignore_errors=True)
+        shutil.rmtree(str(CACHE_DIR / "schemes"), ignore_errors=True)
 
     if args.r:
         reload.colors(args.t)
diff --git a/pywal/colors.py b/pywal/colors.py
index 2483acd..7a1a991 100644
--- a/pywal/colors.py
+++ b/pywal/colors.py
@@ -73,7 +73,7 @@ def sort_colors(img, colors):
     colors_special.update({"cursor": raw_colors[15]})
 
     for index, color in enumerate(raw_colors):
-        colors_hex.update({f"color{index}": color})
+        colors_hex.update({"color%s" % index: color})
 
     colors["special"] = colors_special
     colors["colors"] = colors_hex
diff --git a/pywal/export.py b/pywal/export.py
index 748e3a9..d621672 100644
--- a/pywal/export.py
+++ b/pywal/export.py
@@ -45,7 +45,7 @@ def every(colors, output_dir=CACHE_DIR):
     all_colors = flatten_colors(colors)
     output_dir = pathlib.Path(output_dir)
 
-    for file in os.scandir(MODULE_DIR / "templates"):
+    for file in os.scandir(str(MODULE_DIR / "templates")):
         template(all_colors, file.path, output_dir / file.name)
 
     print("export: Exported all files.")
@@ -61,6 +61,6 @@ def color(colors, export_type, output_file=None):
 
     if template_file.is_file():
         template(all_colors, template_file, output_file)
-        print(f"export: Exported {export_type}.")
+        print("export: Exported %s." % export_type)
     else:
-        print(f"[!] warning: template '{export_type}' doesn't exist.")
+        print("warning: template '%s' doesn't exist." % export_type)
diff --git a/pywal/image.py b/pywal/image.py
index 787bb80..e55a0b1 100644
--- a/pywal/image.py
+++ b/pywal/image.py
@@ -17,7 +17,7 @@ def get_random_image(img_dir):
     current_wall = os.path.basename(current_wall)
 
     file_types = (".png", ".jpg", ".jpeg", ".jpe", ".gif")
-    images = [img for img in os.scandir(img_dir)
+    images = [img for img in os.scandir(str(img_dir))
               if img.name.endswith(file_types) and img.name != current_wall]
 
     if not images:
diff --git a/pywal/reload.py b/pywal/reload.py
index f284966..11d048f 100644
--- a/pywal/reload.py
+++ b/pywal/reload.py
@@ -15,7 +15,7 @@ def xrdb(xrdb_file=None):
     xrdb_file = xrdb_file or CACHE_DIR / "colors.Xresources"
 
     if shutil.which("xrdb"):
-        subprocess.Popen(["xrdb", "-merge", xrdb_file],
+        subprocess.Popen(["xrdb", "-merge", str(xrdb_file)],
                          stdout=subprocess.DEVNULL,
                          stderr=subprocess.DEVNULL).wait()
 
@@ -27,13 +27,13 @@ def gtk():
 
     if theme_path.is_dir():
         if gtk2_file.is_file():
-            shutil.copy(gtk2_file, theme_path / "gtk-2.0")
+            shutil.copy(str(gtk2_file), str(theme_path / "gtk-2.0"))
 
     # Here we call a Python 2 script to reload the GTK themes.
     # This is done because the Python 3 GTK/Gdk libraries don't
     # provide a way of doing this.
     if shutil.which("python2"):
-        util.disown(["python2", MODULE_DIR / "scripts" / "gtk_reload.py"])
+        util.disown(["python2", str(MODULE_DIR / "scripts" / "gtk_reload.py")])
 
     else:
         print("warning: GTK2 reload support requires Python 2.")
diff --git a/pywal/sequences.py b/pywal/sequences.py
index b94bd93..87339d9 100644
--- a/pywal/sequences.py
+++ b/pywal/sequences.py
@@ -12,30 +12,30 @@ def set_special(index, color, iterm_name="h"):
     alpha = util.Color.alpha_num
 
     if OS == "Darwin":
-        return f"\033]P{iterm_name}{color.strip('#')}\033\\"
+        return "\033[P%s%s\033\\" % (iterm_name, color.strip("#"))
 
     if index in [11, 708] and alpha != 100:
-        return f"\033]{index};[{alpha}]{color}\007"
+        return "\033]%s;[%s]%s\007" % (index, alpha, color)
 
-    return f"\033]{index};{color}\007"
+    return "\033]%s;%s\007" % (index, color)
 
 
 def set_color(index, color):
     """Convert a hex color to a text color sequence."""
     if OS == "Darwin":
-        return f"\033]P{index:x}{color.strip('#')}\033\\"
+        return "\033]P%x%s\033\\" % (index, color.strip("#"))
 
-    return f"\033]4;{index};{color}\007"
+    return "\033]4;%s;%s\007" % (index, color)
 
 
 def set_iterm_tab_color(color):
     """Set iTerm2 tab/window color"""
     red, green, blue = util.hex_to_rgb(color)
-    return [
-        f"\033]6;1;bg;red;brightness;{red}\a",
-        f"\033]6;1;bg;green;brightness;{green}\a",
-        f"\033]6;1;bg;blue;brightness;{blue}\a",
-    ]
+    return """
+    \033]6;1;bg;red;brightness;%s\a
+    \033]6;1;bg;green;brightness;%s\a
+    \033]6;1;bg;blue;brightness;%s\a
+    """ % (red, green, blue)
 
 
 def create_sequences(colors, vte):
diff --git a/pywal/util.py b/pywal/util.py
index 9931958..411d459 100644
--- a/pywal/util.py
+++ b/pywal/util.py
@@ -21,7 +21,7 @@ class Color:
     def rgb(self):
         """Convert a hex color to rgb."""
         red, green, blue = hex_to_rgb(self.hex_color)
-        return f"{red},{green},{blue}"
+        return "%s,%s,%s" % (red, green, blue)
 
     @property
     def xrgba(self):
@@ -31,19 +31,19 @@ class Color:
     @property
     def alpha(self):
         """Add URxvt alpha value to color."""
-        return f"[{self.alpha_num}]{self.hex_color}"
+        return "[%s]%s" % (self.alpha_num, self.hex_color)
 
 
 def read_file(input_file):
     """Read data from a file and trim newlines."""
-    with open(input_file, "r") as file:
+    with open(str(input_file), "r") as file:
         data = file.read().splitlines()
     return data
 
 
 def read_file_json(input_file):
     """Read data from a json file."""
-    with open(input_file, "r") as json_file:
+    with open(str(input_file), "r") as json_file:
         data = json.load(json_file)
 
     return data
@@ -52,27 +52,27 @@ def read_file_json(input_file):
 def read_file_raw(input_file):
     """Read data from a file as is, don't strip
        newlines or other special characters.."""
-    with open(input_file, "r") as file:
+    with open(str(input_file), "r") as file:
         data = file.readlines()
     return data
 
 
 def save_file(data, export_file):
     """Write data to a file."""
-    create_dir(os.path.dirname(export_file))
+    create_dir(export_file.parent)
 
     try:
-        with open(export_file, "w") as file:
+        with open(str(export_file), "w") as file:
             file.write(data)
     except PermissionError:
-        print(f"[!] warning: Couldn't write to {export_file}.")
+        print("warning: Couldn't write to %s." % export_file)
 
 
 def save_file_json(data, export_file):
     """Write data to a json file."""
-    create_dir(os.path.dirname(export_file))
+    create_dir(export_file.parent)
 
-    with open(export_file, "w") as file:
+    with open(str(export_file), "w") as file:
         json.dump(data, file, indent=4)
 
 
@@ -88,13 +88,13 @@ def hex_to_rgb(color):
 
 def hex_to_xrgba(color):
     """Convert a hex color to xrdb rgba."""
-    col = color.lower()
-    return f"{col[1]}{col[2]}/{col[3]}{col[4]}/{col[5]}{col[6]}/ff"
+    col = color.lower().strip("#")
+    return "%s%s/%s%s/%s%s/ff" % (*col,)
 
 
 def rgb_to_hex(color):
     """Convert an rgb color to hex."""
-    return f"#{color[0]:02x}{color[1]:02x}{color[2]:02x}"
+    return "#%02x%02x%02x" % (*color,)
 
 
 def darken_color(color, amount):
diff --git a/pywal/wallpaper.py b/pywal/wallpaper.py
index f1ce1dd..79234be 100644
--- a/pywal/wallpaper.py
+++ b/pywal/wallpaper.py
@@ -84,7 +84,7 @@ def set_desktop_wallpaper(desktop, img):
 def set_mac_wallpaper(img):
     """Set the wallpaper on macOS."""
     db_file = HOME / "Library/Application Support/Dock/desktoppicture.db"
-    subprocess.call(["sqlite3", db_file, f"update data set value = '{img}'"])
+    subprocess.call(["sqlite3", db_file, "update data set value = '%s'" % img])
 
     # Kill the dock to fix issues with cached wallpapers.
     # macOS caches wallpapers and if a wallpaper is set that shares
diff --git a/tests/test_export.py b/tests/test_export.py
index 2323c69..e2838fe 100755
--- a/tests/test_export.py
+++ b/tests/test_export.py
@@ -43,7 +43,7 @@ class TestExportColors(unittest.TestCase):
 
     def test_invalid_template(self):
         """> Test template validation."""
-        error_msg = "[!] warning: template 'dummy' doesn't exist."
+        error_msg = "warning: template 'dummy' doesn't exist."
 
         # Since this function prints a message on fail we redirect
         # it's output so that we can read it.
diff --git a/tests/test_main.py b/tests/test_main.py
index 9262c8f..7f1a1bb 100644
--- a/tests/test_main.py
+++ b/tests/test_main.py
@@ -2,6 +2,8 @@
 import unittest
 from unittest.mock import MagicMock
 
+import os
+
 from pywal import __main__
 from pywal import reload
 from pywal.settings import CACHE_DIR
@@ -14,7 +16,7 @@ class TestMain(unittest.TestCase):
         """> Test arg parsing (-c)"""
         args = __main__.get_args(["-c"])
         __main__.process_args(args)
-        self.assertFalse((CACHE_DIR / "schemes").is_dir())
+        self.assertFalse(os.path.isdir(str(CACHE_DIR / "schemes")))
 
     def test_args_e(self):
         """> Test arg parsing (-e)"""
diff --git a/tests/test_sequences.py b/tests/test_sequences.py
index 66f4084..392abc7 100755
--- a/tests/test_sequences.py
+++ b/tests/test_sequences.py
@@ -32,7 +32,8 @@ class Testsequences(unittest.TestCase):
     def test_set_iterm_tab_color(self):
         """> Create iterm tab color sequences"""
         result = sequences.set_iterm_tab_color(COLORS["special"]["background"])
-        self.assertEqual(len(result), 3)
+        print(result)
+        self.assertEqual(len(result), 104)
 
 
 if __name__ == "__main__":
diff --git a/tests/test_util.py b/tests/test_util.py
index bc551ef..aae0356 100755
--- a/tests/test_util.py
+++ b/tests/test_util.py
@@ -49,10 +49,9 @@ class TestUtil(unittest.TestCase):
 
     def test_create_dir(self):
         """> Create a directory."""
-        tmp_dir = pathlib.Path("/tmp/test_dir")
+        tmp_dir = "/tmp/test_dir"
         util.create_dir(tmp_dir)
-        result = tmp_dir.is_dir()
-        self.assertTrue(result)
+        self.assertTrue(os.path.isdir(tmp_dir))
         os.rmdir(tmp_dir)
 
     def test_hex_to_rgb_black(self):