style: Fix PEP8 blank lines issues in Python files

Done with `autopep8 --select=E3,W3`, fixes:

- E301 - Add missing blank line.
- E302 - Add missing 2 blank lines.
- E303 - Remove extra blank lines.
- E304 - Remove blank line following function decorator.
- E309 - Add missing blank line.
- W391 - Remove trailing blank lines.

11 files changed, 47 insertions, 34 deletions

diff --git a/platform/android/detect.py b/platform/android/detect.py
index f1331d24d5..5de4f11445 100644
--- a/platform/android/detect.py
+++ b/platform/android/detect.py
@@ -3,12 +3,15 @@ import sys
 import string
 import platform
 
+
 def is_active():
     return True
 
+
 def get_name():
     return "Android"
 
+
 def can_build():
 
     import os
@@ -17,6 +20,7 @@ def can_build():
 
     return True
 
+
 def get_opts():
 
     return [
@@ -47,6 +51,7 @@ def create(env):
         env.Tool('gcc')
     return env.Clone(tools=tools);
 
+
 def configure(env):
 
     # Workaround for MinGW. See:
@@ -102,7 +107,6 @@ def configure(env):
         env.Tool('gcc')
         env['SHLIBSUFFIX'] = '.so'
 
-
     neon_text = ""
     if env["android_arch"] == "armv7" and env['android_neon'] == 'yes':
         neon_text = " (with neon)"
@@ -241,7 +245,6 @@ def configure(env):
         env.Append(LIBS=['gnustl_static'])
         env.Append(CCFLAGS=["-fno-exceptions", '-DNO_SAFE_CAST'])
 
-
     import methods
     env.Append(BUILDERS={'GLSL120': env.Builder(action=methods.build_legacygl_headers, suffix='glsl.h', src_suffix='.glsl')})
     env.Append(BUILDERS={'GLSL': env.Builder(action=methods.build_glsl_headers, suffix='glsl.h', src_suffix='.glsl')})
diff --git a/platform/bb10/detect.py b/platform/bb10/detect.py
index ed320bebc1..95720794b2 100644
--- a/platform/bb10/detect.py
+++ b/platform/bb10/detect.py
@@ -7,9 +7,11 @@ import methods
 def is_active():
     return True
 
+
 def get_name():
     return "BlackBerry 10"
 
+
 def can_build():
 
     import os
@@ -17,6 +19,7 @@ def can_build():
         return False
     return True
 
+
 def get_opts():
 
     return [
@@ -29,6 +32,7 @@ def get_opts():
         ('bb10_exceptions', 'Use exceptions when compiling on bb10', 'no'),
     ]
 
+
 def get_flags():
 
     return [
@@ -37,6 +41,7 @@ def get_flags():
         ('module_theora_enabled', 'no'),
     ]
 
+
 def configure(env):
 
     if env['PLATFORM'] == 'win32':
@@ -86,4 +91,3 @@ def configure(env):
         env.Append(LINKFLAGS=['-g'])
 
     env.Append(LIBS=['bps', 'pps', 'screen', 'socket', 'EGL', 'GLESv2', 'GLESv1_CM', 'm', 'asound'])
-
diff --git a/platform/haiku/SCsub b/platform/haiku/SCsub
index 23e5e2e711..d0c244a194 100644
--- a/platform/haiku/SCsub
+++ b/platform/haiku/SCsub
@@ -20,6 +20,7 @@ target = env.Program(
 command = env.Command('#bin/godot.rsrc', '#platform/haiku/godot.rdef',
                       ['rc -o $TARGET $SOURCE'])
 
+
 def addResourcesAction(target=None, source=None, env=None):
     return env.Execute('xres -o ' + File(target)[0].path + ' bin/godot.rsrc')
 
diff --git a/platform/haiku/detect.py b/platform/haiku/detect.py
index e64be0a188..71202a9a49 100644
--- a/platform/haiku/detect.py
+++ b/platform/haiku/detect.py
@@ -1,12 +1,15 @@
 import os
 import sys
 
+
 def is_active():
     return True
 
+
 def get_name():
     return "Haiku"
 
+
 def can_build():
     if (os.name != "posix"):
         return False
@@ -16,15 +19,18 @@ def can_build():
 
     return True
 
+
 def get_opts():
     return [
         ('debug_release', 'Add debug symbols to release version', 'no')
     ]
 
+
 def get_flags():
     return [
     ]
 
+
 def configure(env):
     is64 = sys.maxsize > 2**32
 
diff --git a/platform/iphone/detect.py b/platform/iphone/detect.py
index 541487d586..229038697c 100644
--- a/platform/iphone/detect.py
+++ b/platform/iphone/detect.py
@@ -5,9 +5,11 @@ import sys
 def is_active():
     return True
 
+
 def get_name():
     return "iOS"
 
+
 def can_build():
 
     import sys
@@ -17,6 +19,7 @@ def can_build():
 
     return False
 
+
 def get_opts():
 
     return [
@@ -33,6 +36,7 @@ def get_opts():
         ('ios_sim', 'Build simulator binary', 'no'),
     ]
 
+
 def get_flags():
 
     return [
@@ -43,7 +47,6 @@ def get_flags():
     ]
 
 
-
 def configure(env):
 
     env.Append(CPPPATH=['#platform/iphone'])
diff --git a/platform/javascript/detect.py b/platform/javascript/detect.py
index 56b41a49ac..04a6bc9cc3 100644
--- a/platform/javascript/detect.py
+++ b/platform/javascript/detect.py
@@ -2,12 +2,15 @@ import os
 import sys
 import string
 
+
 def is_active():
     return True
 
+
 def get_name():
     return "JavaScript"
 
+
 def can_build():
 
     import os
@@ -15,6 +18,7 @@ def can_build():
         return False
     return True
 
+
 def get_opts():
 
     return [
@@ -22,6 +26,7 @@ def get_opts():
         ['javascript_eval', 'Enable JavaScript eval interface', 'yes'],
     ]
 
+
 def get_flags():
 
     return [
@@ -33,7 +38,6 @@ def get_flags():
     ]
 
 
-
 def configure(env):
     env['ENV'] = os.environ;
     env.use_windows_spawn_fix('javascript')
diff --git a/platform/osx/detect.py b/platform/osx/detect.py
index ddb27742a0..9191f1aabc 100644
--- a/platform/osx/detect.py
+++ b/platform/osx/detect.py
@@ -6,17 +6,19 @@ import sys
 def is_active():
     return True
 
+
 def get_name():
     return "OSX"
 
+
 def can_build():
 
     if (sys.platform == "darwin" or os.environ.has_key("OSXCROSS_ROOT")):
         return True
 
-
     return False
 
+
 def get_opts():
 
     return [
@@ -25,13 +27,13 @@ def get_opts():
 
     ]
 
+
 def get_flags():
 
     return [
     ]
 
 
-
 def configure(env):
 
     env.Append(CPPPATH=['#platform/osx'])
@@ -51,8 +53,6 @@ def configure(env):
 
         env.Append(CCFLAGS=['-g3', '-Wall', '-DDEBUG_ENABLED', '-DDEBUG_MEMORY_ENABLED'])
 
-
-
     if (not os.environ.has_key("OSXCROSS_ROOT")):
         # regular native build
         if (env["bits"] == "64"):
@@ -72,14 +72,12 @@ def configure(env):
         else:
             basecmd = root + "/target/bin/i386-apple-" + env["osxcross_sdk"] + "-"
 
-
         env['CC'] = basecmd + "cc"
         env['CXX'] = basecmd + "c++"
         env['AR'] = basecmd + "ar"
         env['RANLIB'] = basecmd + "ranlib"
         env['AS'] = basecmd + "as"
 
-
     env.Append(CPPFLAGS=["-DAPPLE_STYLE_KEYS"])
     env.Append(CPPFLAGS=['-DUNIX_ENABLED', '-DGLES2_ENABLED', '-DOSX_ENABLED'])
     env.Append(LIBS=['pthread'])
diff --git a/platform/server/detect.py b/platform/server/detect.py
index 9d23ceda70..b367e1f2c3 100644
--- a/platform/server/detect.py
+++ b/platform/server/detect.py
@@ -6,6 +6,7 @@ import sys
 def is_active():
     return True
 
+
 def get_name():
     return "Server"
 
@@ -17,6 +18,7 @@ def can_build():
 
     return True  # enabled
 
+
 def get_opts():
 
     return [
@@ -24,13 +26,13 @@ def get_opts():
         ('force_32_bits', 'Force 32 bits binary', 'no')
     ]
 
+
 def get_flags():
 
     return [
     ]
 
 
-
 def configure(env):
 
     env.Append(CPPPATH=['#platform/server'])
@@ -47,13 +49,11 @@ def configure(env):
         else:
             env["bits"] = "32"
 
-
     # if (env["tools"]=="no"):
     #	#no tools suffix
     #	env['OBJSUFFIX'] = ".nt"+env['OBJSUFFIX']
     #	env['LIBSUFFIX'] = ".nt"+env['LIBSUFFIX']
 
-
     if (env["target"] == "release"):
 
         env.Append(CCFLAGS=['-O2', '-ffast-math', '-fomit-frame-pointer'])
@@ -73,4 +73,3 @@ def configure(env):
         env.Append(CPPFLAGS=['-DTYPED_METHOD_BIND'])
         env["CC"] = "clang"
         env["LD"] = "clang++"
-
diff --git a/platform/windows/detect.py b/platform/windows/detect.py
index 4bb6dc4a96..93d29a3606 100644
--- a/platform/windows/detect.py
+++ b/platform/windows/detect.py
@@ -99,12 +99,15 @@ import sys
 
 import methods
 
+
 def is_active():
     return True
 
+
 def get_name():
     return "Windows"
 
+
 def can_build():
 
     if (os.name == "nt"):
@@ -148,6 +151,7 @@ def can_build():
 
     return False
 
+
 def get_opts():
 
     mingw = ""
@@ -167,12 +171,12 @@ def get_opts():
     if (os.getenv("MINGW64_PREFIX")):
         mingw64 = os.getenv("MINGW64_PREFIX")
 
-
     return [
         ('mingw_prefix', 'Mingw Prefix', mingw32),
         ('mingw_prefix_64', 'Mingw Prefix 64 bits', mingw64),
     ]
 
+
 def get_flags():
 
     return [
@@ -180,6 +184,7 @@ def get_flags():
         ('openssl', 'builtin'),  # use builtin openssl
     ]
 
+
 def build_res_file(target, source, env):
 
     cmdbase = ""
@@ -200,6 +205,7 @@ def build_res_file(target, source, env):
             return 1
     return 0
 
+
 def configure(env):
 
     env.Append(CPPPATH=['#platform/windows'])
@@ -210,7 +216,6 @@ def configure(env):
         env.Append(CPPPATH=['#platform/windows/include'])
         env.Append(LIBPATH=['#platform/windows/lib'])
 
-
         if (env["target"] == "release"):
 
             env.Append(CCFLAGS=['/O2'])
@@ -234,7 +239,6 @@ def configure(env):
             env.Append(LINKFLAGS=['/SUBSYSTEM:CONSOLE'])
             env.Append(LINKFLAGS=['/DEBUG'])
 
-
         env.Append(CCFLAGS=['/MT', '/Gd', '/GR', '/nologo'])
         env.Append(CXXFLAGS=['/TP'])
         env.Append(CPPFLAGS=['/DMSVC', '/GR', ])
@@ -331,8 +335,6 @@ def configure(env):
         else:
             nulstr = ">nul"
 
-
-
         # if os.system(mingw_prefix+"gcc --version"+nulstr)!=0:
             # #not really super consistent but..
             # print("Can't find Windows compiler: "+mingw_prefix)
@@ -357,8 +359,6 @@ def configure(env):
 
             env.Append(CCFLAGS=['-g', '-Wall', '-DDEBUG_ENABLED', '-DDEBUG_MEMORY_ENABLED'])
 
-
-
         env["CC"] = mingw_prefix + "gcc"
         env['AS'] = mingw_prefix + "as"
         env['CXX'] = mingw_prefix + "g++"
@@ -381,9 +381,6 @@ def configure(env):
         # env.Append(CPPFLAGS=['-march=i686'])
         # env.Append(LINKFLAGS=['-march=i686'])
 
-
-
-
         #'d3dx9d'
         env.Append(CPPFLAGS=['-DMINGW_ENABLED'])
         # env.Append(LINKFLAGS=['-g'])
diff --git a/platform/winrt/detect.py b/platform/winrt/detect.py
index 19a6324e1e..15ac429687 100644
--- a/platform/winrt/detect.py
+++ b/platform/winrt/detect.py
@@ -8,9 +8,11 @@ import methods
 def is_active():
     return True
 
+
 def get_name():
     return "WinRT"
 
+
 def can_build():
     if (os.name == "nt"):
         # building natively on windows!
@@ -22,9 +24,11 @@ def can_build():
             return True
     return False
 
+
 def get_opts():
     return []
 
+
 def get_flags():
 
     return [
@@ -129,12 +133,10 @@ def configure(env):
         env.Append(LINKFLAGS=['/SUBSYSTEM:CONSOLE'])
         env.Append(LINKFLAGS=['/DEBUG'])
 
-
     env.Append(CCFLAGS=string.split('/FS /MP /GS /wd"4453" /wd"28204" /wd"4291" /Zc:wchar_t /Gm- /fp:precise /D "_UNICODE" /D "UNICODE" /D "WINAPI_FAMILY=WINAPI_FAMILY_APP" /errorReport:prompt /WX- /Zc:forScope /Gd /EHsc /nologo'))
     env.Append(CXXFLAGS=string.split('/ZW /FS'))
     env.Append(CCFLAGS=['/AI', os.environ['VCINSTALLDIR'] + '\\vcpackages', '/AI', os.environ['WINDOWSSDKDIR'] + '\\References\\CommonConfiguration\\Neutral'])
 
-
     env["PROGSUFFIX"] = "." + arch + env["PROGSUFFIX"]
     env["OBJSUFFIX"] = "." + arch + env["OBJSUFFIX"]
     env["LIBSUFFIX"] = "." + arch + env["LIBSUFFIX"]
diff --git a/platform/x11/detect.py b/platform/x11/detect.py
index 37c787179f..935a9fcc26 100644
--- a/platform/x11/detect.py
+++ b/platform/x11/detect.py
@@ -7,6 +7,7 @@ import platform
 def is_active():
     return True
 
+
 def get_name():
     return "X11"
 
@@ -50,9 +51,9 @@ def can_build():
         print("xrandr not found.. x11 disabled.")
         return False
 
-
     return True  # X11 enabled
 
+
 def get_opts():
 
     return [
@@ -65,6 +66,7 @@ def get_opts():
         ('debug_release', 'Add debug symbols to release version', 'no'),
     ]
 
+
 def get_flags():
 
     return [
@@ -74,7 +76,6 @@ def get_flags():
     ]
 
 
-
 def configure(env):
 
     is64 = sys.maxsize > 2**32
@@ -104,13 +105,11 @@ def configure(env):
         env.Append(LINKFLAGS=['-fsanitize=address'])
         env.extra_suffix += "s"
 
-
     # if (env["tools"]=="no"):
     #	#no tools suffix
     #	env['OBJSUFFIX'] = ".nt"+env['OBJSUFFIX']
     #	env['LIBSUFFIX'] = ".nt"+env['LIBSUFFIX']
 
-
     if (env["target"] == "release"):
 
         if (env["debug_release"] == "yes"):
@@ -174,7 +173,6 @@ def configure(env):
     if (env["libogg"] == "system"):
         env.ParseConfig('pkg-config ogg --cflags --libs')
 
-
     env.Append(CPPFLAGS=['-DOPENGL_ENABLED'])
 
     if (env["glew"] == "system"):
@@ -223,7 +221,6 @@ def configure(env):
         env.Append(CPPFLAGS=['-m64'])
         env.Append(LINKFLAGS=['-m64', '-L/usr/lib/i686-linux-gnu'])
 
-
     import methods
 
     env.Append(BUILDERS={'GLSL120': env.Builder(action=methods.build_legacygl_headers, suffix='glsl.h', src_suffix='.glsl')})
@@ -237,4 +234,3 @@ def configure(env):
     list_of_x86 = ['x86_64', 'x86', 'i386', 'i586']
     if any(platform.machine() in s for s in list_of_x86):
         env["x86_libtheora_opt_gcc"] = True
-