skolodya@ubuntu:$ sudo git commit
[sudo] password for xieerqi:
On branch master
Your branch is based on 'origin/master', but the upstream is gone.
  (use "git branch --unset-upstream" to fixup)

nothing to commit, working directory clean

skolodya@ubuntu:$ EDITOR='vi' git commit
fatal: could not open '.git/COMMIT_EDITMSG': Permission denied

sudo chown -R $USER: ~

skolodya@ubuntu:$ ls -l .git
total 44
drwxrwxr-x 2 xieerqi xieerqi 4096 Feb  6 14:43 branches/
-rw-r--r-- 1 root    root      12 Feb  6 15:04 COMMIT_EDITMSG
-rw-rw-r-- 1 xieerqi xieerqi  394 Feb  6 15:13 config
-rw-rw-r-- 1 xieerqi xieerqi   73 Feb  6 14:43 description
-rw-rw-r-- 1 xieerqi xieerqi   23 Feb  6 14:43 HEAD
drwxrwxr-x 2 xieerqi xieerqi 4096 Feb  6 14:43 hooks/
-rw-rw-r-- 1 xieerqi xieerqi  112 Feb  6 14:43 index
drwxrwxr-x 2 xieerqi xieerqi 4096 Feb  6 14:43 info/
drwxr-xr-x 3 root    root    4096 Feb  6 14:44 logs/

nitroshare (- to 0.3.1-1)
    Maintainer: Nathan Osman
    Section: universe/misc
    0 days old
    Valid candidate

>>> with open("utf8check.txt", mode="rb") as file:
...  lines = file.readlines()
...
>>> for n, line in enumerate(lines, 1):
...  try:
...   l = line.decode("utf-8", "strict")
...  except UnicodeDecodeError:
...   print(n, line)
...
>>>

grep --color='auto' -P -n "[\x80-\xFF]" utf8check.txt

126 class factorial:
127   def fact(self,a):
128     if a < 0: raise ValueError("Less than zero")
129     if a == 0 or a == 1 : return 1
130     stack = linked_list()
131     stack2 = linked_list()
132     print stack
133     print stack2
134     stack.push_front(a)
135     print stack2.empty()

160 if __name__ == '__main__':
161 #   unittest.main()
162
163 #if main:
164
165 #   print factorial().fact(1)
166    print factorial().fact(5)
167 #   print factorial().fact(100)

DIR:/xieerqi
skolodya@ubuntu:$ ./linkedlist.py
<__main__.linked_list instance at 0x7f2d18a146c8>
<__main__.linked_list instance at 0x7f2d18a14710>
True

<__main__.linked_list instance at 0x7fc6f306a6c8>
<__main__.linked_list instance at 0x7fc6f306a710>
True
None
<__main__.node instance at 0x7fc6f306a638>

>>> a = b = 1
>>> print a
1
>>> print id(a)
25559384
>>> print id(b)
25559384

DIR:/xieerqi
skolodya@ubuntu:$ ./linkedlist.py
<__main__.linked_list instance at 0x7fdfdc4ed6c8>
<__main__.linked_list instance at 0x7fdfdc4ed710>
True
9545840
140599450588728

skolodya@ubuntu:$ ./linkedlist.py
Traceback (most recent call last):
  File "./linkedlist.py", line 169, in <module>
    print factorial().fact(5)
  File "./linkedlist.py", line 133, in fact
    print type(stack).front
AttributeError: type object 'instance' has no attribute 'front'

class linked_list:
  def __init__(self):
      self.front=self.rear=None

>>> class Test:
...   def __init__(self):
...     self.front=self.rear=None
...
>>> test = Test()
>>> test.front
>>> test.rear
>>> dir(type(test))
['__class__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__le__', '__lt__', '__module__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__']
>>> type(test).rear
Traceback (most recent call last):