style: Fix PEP8 whitespace issues in Python files

Done with `autopep8 --select=E2,W2`, fixes:

- E201 - Remove extraneous whitespace.
- E202 - Remove extraneous whitespace.
- E203 - Remove extraneous whitespace.
- E211 - Remove extraneous whitespace.
- E221 - Fix extraneous whitespace around keywords.
- E222 - Fix extraneous whitespace around keywords.
- E223 - Fix extraneous whitespace around keywords.
- E224 - Remove extraneous whitespace around operator.
- E225 - Fix missing whitespace around operator.
- E226 - Fix missing whitespace around operator.
- E227 - Fix missing whitespace around operator.
- E228 - Fix missing whitespace around operator.
- E231 - Add missing whitespace.
- E231 - Fix various deprecated code (via lib2to3).
- E241 - Fix extraneous whitespace around keywords.
- E242 - Remove extraneous whitespace around operator.
- E251 - Remove whitespace around parameter '=' sign.
- E261 - Fix spacing after comment hash.
- E262 - Fix spacing after comment hash.
- E265 - Format block comments.
- E271 - Fix extraneous whitespace around keywords.
- E272 - Fix extraneous whitespace around keywords.
- E273 - Fix extraneous whitespace around keywords.
- E274 - Fix extraneous whitespace around keywords.
- W291 - Remove trailing whitespace.
- W293 - Remove trailing whitespace.

tools/scripts/addheader.py

@@ -1,4 +1,4 @@
-header="""\
+header = """\
 /*************************************************************************/
 /*  $filename                                                            */
 /*************************************************************************/
@@ -29,44 +29,44 @@ header="""\
 /*************************************************************************/
 """
 
-f = open("files","rb")
+f = open("files", "rb")
 
 fname = f.readline()
-while (fname!=""):
+while (fname != ""):
 
-    fr = open(fname.strip(),"rb")
+    fr = open(fname.strip(), "rb")
     l = fr.readline()
-    bc=False
+    bc = False
     fsingle = fname.strip()
 
-    if (fsingle.find("/")!=-1):
-        fsingle=fsingle[fsingle.rfind("/")+1:]
-    rep_fl="$filename"
-    rep_fi=fsingle
-    len_fl=len(rep_fl)
-    len_fi=len(rep_fi)
-    if (len_fi<len_fl):
-        for x in range(len_fl-len_fi):
-            rep_fi+=" "
-    elif (len_fl<len_fi):
-        for x in range(len_fi-len_fl):
-            rep_fl+=" "
-    if (header.find(rep_fl)!=-1):
-        text=header.replace(rep_fl,rep_fi)
+    if (fsingle.find("/") != -1):
+        fsingle = fsingle[fsingle.rfind("/") + 1:]
+    rep_fl = "$filename"
+    rep_fi = fsingle
+    len_fl = len(rep_fl)
+    len_fi = len(rep_fi)
+    if (len_fi < len_fl):
+        for x in range(len_fl - len_fi):
+            rep_fi += " "
+    elif (len_fl < len_fi):
+        for x in range(len_fi - len_fl):
+            rep_fl += " "
+    if (header.find(rep_fl) != -1):
+        text = header.replace(rep_fl, rep_fi)
     else:
-        text=header.replace("$filename",fsingle)
+        text = header.replace("$filename", fsingle)
 
 
-    while (l!=""):
-        if ((l.find("//")!=0 and  l.find("/*")!=0 and l.strip()!="") or bc):
-            text+=l
-            bc=True
-        l=fr.readline()
+    while (l != ""):
+        if ((l.find("//") != 0 and l.find("/*") != 0 and l.strip() != "") or bc):
+            text += l
+            bc = True
+        l = fr.readline()
 
     fr.close()
-    fr=open(fname.strip(),"wb")
+    fr = open(fname.strip(), "wb")
     fr.write(text)
     fr.close()
-    #print(text)
-    fname=f.readline()
+    # print(text)
+    fname = f.readline()