Modify python formatting

scripts/buildorder.py

@@ -7,7 +7,6 @@ import sys
 
 from itertools import filterfalse
 
-
 def unique_everseen(iterable, key=None):
     """List unique elements, preserving order. Remember all elements ever seen.
     See https://docs.python.org/3/library/itertools.html#itertools-recipes
@@ -27,12 +26,10 @@ def unique_everseen(iterable, key=None):
                 seen_add(k)
                 yield element
 
-
 def die(msg):
     "Exit the process with an error message."
     sys.exit('ERROR: ' + msg)
 
-
 def parse_build_file_dependencies(path):
     "Extract the dependencies of a build.sh or *.subpackage.sh file."
     pkg_dep_prefix = 'TERMUX_PKG_DEPENDS='
@@ -64,7 +61,6 @@ def parse_build_file_dependencies(path):
 
     return set(dependencies)
 
-
 class TermuxPackage(object):
     "A main package definition represented by a directory with a build.sh file."
     def __init__(self, dir_path):
@@ -111,7 +107,6 @@ class TermuxPackage(object):
             result += [dependency_package]
         return unique_everseen(result)
 
-
 class TermuxSubPackage:
     "A sub-package represented by a ${PACKAGE_NAME}.subpackage.sh file."
     def __init__(self, subpackage_file_path, parent):
@@ -125,7 +120,6 @@ class TermuxSubPackage:
     def __repr__(self):
         return "<{} '{}' parent='{}'>".format(self.__class__.__name__, self.name, self.parent)
 
-
 def read_packages_from_directories(directories):
     """Construct a map from package name to TermuxPackage.
     For subpackages this maps from the subpackage name to the parent package."""
@@ -160,7 +154,6 @@ def read_packages_from_directories(directories):
                 dep_pkg.needed_by.add(pkg)
     return pkgs_map
 
-
 def generate_full_buildorder(pkgs_map):
     "Generate a build order for building all packages."
     build_order = []
@@ -214,7 +207,6 @@ def generate_full_buildorder(pkgs_map):
 
     return build_order
 
-
 def generate_target_buildorder(target_path, pkgs_map):
     "Generate a build order for building the dependencies of the specified package."
     if target_path.endswith('/'):