diff --git a/.idea/vcs.xml b/.idea/vcs.xml
index 94a25f7..5ace414 100644
--- a/.idea/vcs.xml
+++ b/.idea/vcs.xml
@@ -3,4 +3,4 @@
   <component name="VcsDirectoryMappings">
     <mapping directory="$PROJECT_DIR$" vcs="Git" />
   </component>
-</project>
\ No newline at end of file
+</project>
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100644
index 0000000..4fb5a96
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,16 @@
+repos:
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v2.4.0
+  hooks:
+  - id: check-added-large-files
+    args: ['--maxkb=100']
+  - id: check-ast
+  - id: check-byte-order-marker
+  - id: check-case-conflict
+  - id: check-docstring-first
+  - id: check-executables-have-shebangs
+  - id: check-merge-conflict
+  - id: end-of-file-fixer
+  - id: fix-encoding-pragma
+  - id: mixed-line-ending
+  - id: trailing-whitespace
diff --git a/README.md b/README.md
index 40cf7eb..fe98044 100644
--- a/README.md
+++ b/README.md
@@ -33,12 +33,12 @@ Usage: yaml-plist.py <input-file> [<output-file>]
 
 **Notes:**
 
-1. With `plistyamlplist.py`, if you do not specify an `output-file` value, the script determines if the `input-file` is 
-   a plist or yaml file. If a plist file, the `input-file` name will be appended with `.yaml` for the output file. If a 
+1. With `plistyamlplist.py`, if you do not specify an `output-file` value, the script determines if the `input-file` is
+   a plist or yaml file. If a plist file, the `input-file` name will be appended with `.yaml` for the output file. If a
    yaml file, the output file name will be the `input-file` name with `.yaml` removed.
-2. With `plist_yaml.py`, if you do not specify an `output-file` value, the `input-file` name will be appended with 
+2. With `plist_yaml.py`, if you do not specify an `output-file` value, the `input-file` name will be appended with
    `.yaml` for the output file.
-3. With `yaml_plist.py`, if you do not specify an `output-file` value, and the `input-file` name ends with `.yaml`, 
+3. With `yaml_plist.py`, if you do not specify an `output-file` value, and the `input-file` name ends with `.yaml`,
    the output file name will be the `input-file` name with `.yaml` removed.
 4. With `plist_yaml.py`, you may have to first convert a binary plist to text format using `plutil`.
 
@@ -73,8 +73,8 @@ If you have a folder named `YAML` in your path, and you do not supply a destinat
 will determine if a corresponding folder exists in the path without 'YAML'. For example, consider the following file:
 
     /Users/myuser/gitrepo/YAML/product/com.something.plist.yaml
-    
-If the folder `/Users/myuser/gitrepo/product` exists, the converted file will be created/overwritten at: 
+
+If the folder `/Users/myuser/gitrepo/product` exists, the converted file will be created/overwritten at:
 
     /Users/myuser/gitrepo/product/com.something.plist
 
diff --git a/plistyamlplist.py b/plistyamlplist.py
index 7f3f3bc..7316ab6 100755
--- a/plistyamlplist.py
+++ b/plistyamlplist.py
@@ -1,8 +1,8 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
 
-"""
-If this script is run directly, it takes an input file and an output file from
-the command line. It detects if the input file is a YAML or a PLIST file,
+"""If this script is run directly, it takes an input file and an output file
+from the command line. It detects if the input file is a YAML or a PLIST file,
 and converts to the other format:
 
 plistyamlplist.py <input-file> <output-file>
@@ -19,22 +19,26 @@
 
 
 def usage():
-    """print help"""
+    """print help."""
     print("Usage: plistyamlplist.py <input-file> <output-file>\n")
-    print("If <input-file> is a PLIST and <output-file> is omitted,\n"
-          "<input-file> is converted to <input-file>.yaml\n")
-    print("If <input-file> ends in .yaml or .yml and <output-file> is omitted,\n"
-          "<input-file>.yaml is converted to PLIST format with name <input-file>\n")
+    print(
+        "If <input-file> is a PLIST and <output-file> is omitted,\n"
+        "<input-file> is converted to <input-file>.yaml\n"
+    )
+    print(
+        "If <input-file> ends in .yaml or .yml and <output-file> is omitted,\n"
+        "<input-file>.yaml is converted to PLIST format with name <input-file>\n"
+    )
 
 
 def check_if_plist(in_path):
-    """rather than restrict by filename, check if the file is a plist by reading
-    the second line of the file for the PLIST declaration"""
+    """rather than restrict by filename, check if the file is a plist by
+    reading the second line of the file for the PLIST declaration."""
     with open(in_path) as fp:
         for i, line in enumerate(fp):
             if i == 1:
                 # print line
-                if line.find('PLIST 1.0') == -1:
+                if line.find("PLIST 1.0") == -1:
                     is_plist = False
                 else:
                     is_plist = True
@@ -57,13 +61,13 @@ def check_for_yaml_folder(check_path):
             print('Path exists : {}'.format(out_path))
             return out_path
         else:
-            print('Path does not exist : {}'.format(out_path))
-            print('Please create this folder and try again')
+            print("Path does not exist : {}".format(out_path))
+            print("Please create this folder and try again")
             exit(1)
 
 
 def main():
-    """get the command line inputs if running this script directly"""
+    """get the command line inputs if running this script directly."""
     if len(sys.argv) < 2:
         usage()
         exit(1)
@@ -72,7 +76,7 @@ def main():
     try:
         sys.argv[2]
     except IndexError:
-        if in_path.endswith('.yaml') or in_path.endswith('.yml'):
+        if in_path.endswith(".yaml") or in_path.endswith(".yml"):
             out_dir = check_for_yaml_folder(in_path)
             if out_dir:
                 filename, file_extension = os.path.splitext(os.path.basename(in_path))
@@ -91,7 +95,7 @@ def main():
         out_path = sys.argv[2]
 
     # auto-determine which direction the conversion should go
-    if in_path.endswith('.yaml'):
+    if in_path.endswith(".yaml"):
         yaml_plist(in_path, out_path)
     else:
         if check_if_plist(in_path):
@@ -100,8 +104,8 @@ def main():
             print("\nERROR: Input File is neither PLIST nor YAML format.\n")
             usage()
             exit(1)
-    print('Wrote to : {}'.format(out_path))
+    print("Wrote to : {}".format(out_path))
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     main()
diff --git a/plistyamlplist_lib/plist_yaml.py b/plistyamlplist_lib/plist_yaml.py
index 9fd028f..dc63b38 100755
--- a/plistyamlplist_lib/plist_yaml.py
+++ b/plistyamlplist_lib/plist_yaml.py
@@ -1,9 +1,9 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
 
-"""
-If this script is run directly, it takes an input file and an output file from
-the command line. The input file must be in PLIST format.
-The output file will be in YAML format:
+"""If this script is run directly, it takes an input file and an output file
+from the command line. The input file must be in PLIST format. The output file
+will be in YAML format:
 
 plist_yaml.py <input-file> <output-file>
 
@@ -12,49 +12,92 @@
 """
 
 import sys
+from collections import OrderedDict
+
+try:
+    from plistlib import Data  # Python 3
+    from plistlib import load as load_plist
+except ImportError:
+    from plistlib import Data  # Python 2
+    from plistlib import readPlist as load_plist
+
 import yaml
-from plistlib import readPlist, Data
 
 
-def normalize_types(input):
-    """
-    This allows YAML and JSON to store Data fields as strings. However, this
-    operation is irreversible.  Only use if read-only access to the plist is
-    required.
+def represent_ordereddict(dumper, data):
+    value = []
+
+    for item_key, item_value in data.items():
+        node_key = dumper.represent_data(item_key)
+        node_value = dumper.represent_data(item_value)
+
+        value.append((node_key, node_value))
+
+    return yaml.nodes.MappingNode(u"tag:yaml.org,2002:map", value)
+
+
+def normalize_types(input_data):
+    """This allows YAML and JSON to store Data fields as strings.
+
+    However, this operation is irreversible. Only use if read-only
+    access to the plist is required.
     """
-    if isinstance(input, Data): return input.data
-    if isinstance(input, list):
+    if isinstance(input_data, Data):
+        return input_data.data
+    if isinstance(input_data, list):
         retval = []
-        for child in input:
+        for child in input_data:
             retval.append(normalize_types(child))
         return retval
-    if isinstance(input, dict):
+    if isinstance(input_data, dict):
         retval = {}
-        for key, child in input.iteritems():
-            retval[key] = normalize_types(child)
+        for key in input_data:
+            retval[key] = normalize_types(input_data[key])
         return retval
-    return input
+    return input_data
+
+
+def sort_autopkg_processes(recipe):
+    """If input is an AutoPkg recipe, adjust the processor dictionaries such
+    that the Arguments key is ordered last.
+
+    This usually puts the Processor key first, which makes the process
+    list more human-readable.
+    """
+    if "Process" in recipe:
+        process = recipe["Process"]
+        new_process = []
+        for processor in process:
+            if "Arguments" in processor:
+                processor = OrderedDict(processor)
+                processor.move_to_end("Arguments")
+            new_process.append(processor)
+        recipe["Process"] = new_process
+    return recipe
 
 
 def convert(xml):
-    """Do the conversion"""
-    return yaml.dump(xml, width=float('inf'), default_flow_style=False)
+    """Do the conversion."""
+    yaml.add_representer(OrderedDict, represent_ordereddict)
+    return yaml.dump(xml, width=float("inf"), default_flow_style=False)
 
 
 def plist_yaml(in_path, out_path):
-    """Convert plist to yaml"""
-    in_file = open(in_path, 'r')
-    input = readPlist(in_file)
+    """Convert plist to yaml."""
+    with open(in_path, "rb") as in_file:
+        input_data = load_plist(in_file)
 
-    normalized = normalize_types(input)
+    normalized = normalize_types(input_data)
+    if sys.version_info.major == 3 and in_path.endswith((".recipe", ".recipe.plist")):
+        normalized = sort_autopkg_processes(normalized)
     output = convert(normalized)
 
-    out_file = open(out_path, 'w')
+    out_file = open(out_path, "w")
     out_file.writelines(output)
 
 
 def main():
-    """Get the command line inputs if running this script directly"""
+    """Get the command line inputs if running this script directly."""
     if len(sys.argv) < 2:
         print("Usage: plist_yaml.py <input-file> <output-file>")
         sys.exit(1)
@@ -71,5 +114,5 @@ def main():
     plist_yaml(in_path, out_path)
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     main()
diff --git a/plistyamlplist_lib/yaml_plist.py b/plistyamlplist_lib/yaml_plist.py
index 358bbe9..d944c9b 100755
--- a/plistyamlplist_lib/yaml_plist.py
+++ b/plistyamlplist_lib/yaml_plist.py
@@ -1,9 +1,9 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
 
-"""
-If this script is run directly, it takes an input file and an output file from
-the command lineThe input file must be in YAML format.
-The output file will be in PLIST format:
+"""If this script is run directly, it takes an input file and an output file
+from the command lineThe input file must be in YAML format. The output file
+will be in PLIST format:
 
 yaml_plist.py <input-file> <output-file>
 
@@ -19,27 +19,29 @@
 
 from plistlib import writePlistToString
 
+import yaml
+
 
-def convert(yaml):
-    """Do the conversion"""
-    lines = writePlistToString(yaml).splitlines()
-    lines.append('')
+def convert(data):
+    """Do the conversion."""
+    lines = writePlistToString(data).splitlines()
+    lines.append("")
     return "\n".join(lines)
 
 
 def yaml_plist(in_path, out_path):
-    """Convert yaml to plist"""
-    in_file = open(in_path, 'r')
-    out_file = open(out_path, 'w')
+    """Convert yaml to plist."""
+    in_file = open(in_path, "r")
+    out_file = open(out_path, "w")
 
-    input = yaml.safe_load(in_file)
-    output = convert(input)
+    input_data = yaml.safe_load(in_file)
+    output = convert(input_data)
 
     out_file.writelines(output)
 
 
 def main():
-    """Get the command line inputs if running this script directly"""
+    """Get the command line inputs if running this script directly."""
     if len(sys.argv) < 2:
         print("Usage: yaml_plist.py <input-file> <output-file>")
         sys.exit(1)
@@ -60,5 +62,5 @@ def main():
     yaml_plist(in_path, out_path)
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     main()