Fix flake8 issues

1) Drop unused import (fileinput)

Fixes:

| F401 'fileinput' imported but unused

2) Quoting from https://www.flake8rules.com/rules/E722.html:

| A bare except: clause will catch SystemExit and KeyboardInterrupt
| exceptions, making it harder to interrupt a program with Control-C, and
| can disguise other problems. If you want to catch all exceptions that
| signal program errors, use except Exception: (bare except is equivalent
| to except BaseException:).

Fixes:

| E722 	do not use bare except, specify exception instead

3) Quoting from https://www.flake8rules.com/rules/E713.html:

| Tests for membership should use the form x not in the_list rather than
| not x in the_list. The former example is simply more readable.

Fixes:

| E713 test for membership should be 'not in'

diff --git a/grml-x b/grml-x
index 2aefadc..d8b9c8b 100755 (executable)
--- a/grml-x
+++ b/grml-x
@@ -9,7 +9,6 @@
 # License:       This file is licensed under the GPL v2.
 ###############################################################################
 
-import fileinput
 import os
 import subprocess
 import sys
@@ -75,7 +74,7 @@ def build_bootparams():
                     f = open(os.path.join(root, name))
                     lines.extend(f.readlines())
                     f.close()
-        except:
+        except Exception:
             print("W: Error while getting bootparams from %s" % p)
 
     f = open("/proc/cmdline")
@@ -144,7 +143,7 @@ def check_old_xorg_conf(filename, overwrite):
         f = open(filename, "r")
         lines = f.readlines()
         f.close()
-        return not XORG_CONF_HEADER in lines
+        return XORG_CONF_HEADER not in lines
     except IOError:
         return False