qapi: Fix some pycodestyle-3 complaints

Fix the following issues:

    common.py:873:13: E129 visually indented line with same indent as next logical line
    common.py:1766:5: E741 ambiguous variable name 'l'
    common.py:1784:1: E305 expected 2 blank lines after class or function definition, found 1
    common.py:1833:1: E305 expected 2 blank lines after class or function definition, found 1
    common.py:1843:1: E305 expected 2 blank lines after class or function definition, found 1
    visit.py:181:18: E127 continuation line over-indented for visual indent

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180621083551.775-1-armbru@redhat.com>
[Fixup squashed in:]
Message-ID: <871sd0nzw9.fsf@dusky.pond.sub.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>

3 files changed, 17 insertions, 13 deletions

diff --git a/scripts/qapi/common.py b/scripts/qapi/common.py
index 9230a2a..02c5c67 100644
--- a/scripts/qapi/common.py
+++ b/scripts/qapi/common.py
@@ -884,12 +884,12 @@ def check_keys(expr_elem, meta, required, optional=[]):
         if key not in required and key not in optional:
             raise QAPISemError(info, "Unknown key '%s' in %s '%s'"
                                % (key, meta, name))
-        if (key == 'gen' or key == 'success-response') and value is not False:
+        if key in ['gen', 'success-response'] and value is not False:
             raise QAPISemError(info,
                                "'%s' of %s '%s' should only use false value"
                                % (key, meta, name))
-        if (key == 'boxed' or key == 'allow-oob' or
-            key == 'allow-preconfig') and value is not True:
+        if (key in ['boxed', 'allow-oob', 'allow-preconfig']
+                and value is not True):
             raise QAPISemError(info,
                                "'%s' of %s '%s' should only use true value"
                                % (key, meta, name))
@@ -1845,12 +1845,12 @@ def camel_to_upper(value):
         return c_fun_str
 
     new_name = ''
-    l = len(c_fun_str)
-    for i in range(l):
+    length = len(c_fun_str)
+    for i in range(length):
         c = c_fun_str[i]
         # When c is upper and no '_' appears before, do more checks
         if c.isupper() and (i > 0) and c_fun_str[i - 1] != '_':
-            if i < l - 1 and c_fun_str[i + 1].islower():
+            if i < length - 1 and c_fun_str[i + 1].islower():
                 new_name += '_'
             elif c_fun_str[i - 1].isdigit():
                 new_name += '_'
@@ -1863,6 +1863,7 @@ def c_enum_const(type_name, const_name, prefix=None):
         type_name = prefix
     return camel_to_upper(type_name) + '_' + c_name(const_name, False).upper()
 
+
 if hasattr(str, 'maketrans'):
     c_name_trans = str.maketrans('.-', '__')
 else:
@@ -1912,6 +1913,7 @@ def c_name(name, protect=True):
         return 'q_' + name
     return name
 
+
 eatspace = '\033EATSPACE.'
 pointer_suffix = ' *' + eatspace
 
@@ -1922,6 +1924,7 @@ def genindent(count):
         ret += ' '
     return ret
 
+
 indent_level = 0
 
 
diff --git a/scripts/qapi/visit.py b/scripts/qapi/visit.py
index dd5034a..460cf12 100644
--- a/scripts/qapi/visit.py
+++ b/scripts/qapi/visit.py
@@ -187,7 +187,7 @@ void visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s **obj, Error
     }
     switch ((*obj)->type) {
 ''',
-                 c_name=c_name(name))
+                c_name=c_name(name))
 
     for var in variants.variants:
         ret += mcgen('''
diff --git a/tests/qapi-schema/test-qapi.py b/tests/qapi-schema/test-qapi.py
index f514fe7..cea21c7 100644
--- a/tests/qapi-schema/test-qapi.py
+++ b/tests/qapi-schema/test-qapi.py
@@ -34,8 +34,8 @@ class QAPISchemaTestVisitor(QAPISchemaVisitor):
         if base:
             print('    base %s' % base.name)
         for m in members:
-            print('    member %s: %s optional=%s' % \
-                  (m.name, m.type.name, m.optional))
+            print('    member %s: %s optional=%s'
+                  % (m.name, m.type.name, m.optional))
         self._print_variants(variants)
         self._print_if(ifcond)
 
@@ -46,10 +46,11 @@ class QAPISchemaTestVisitor(QAPISchemaVisitor):
 
     def visit_command(self, name, info, ifcond, arg_type, ret_type, gen,
                       success_response, boxed, allow_oob, allow_preconfig):
-        print('command %s %s -> %s' % \
-              (name, arg_type and arg_type.name, ret_type and ret_type.name))
-        print('   gen=%s success_response=%s boxed=%s oob=%s preconfig=%s' % \
-              (gen, success_response, boxed, allow_oob, allow_preconfig))
+        print('command %s %s -> %s'
+              % (name, arg_type and arg_type.name,
+                 ret_type and ret_type.name))
+        print('   gen=%s success_response=%s boxed=%s oob=%s preconfig=%s'
+              % (gen, success_response, boxed, allow_oob, allow_preconfig))
         self._print_if(ifcond)
 
     def visit_event(self, name, info, ifcond, arg_type, boxed):