yum is not working throwing error

knitinfk · 07-20-2015, 04:20 AM

Hi,

yum is throwing the following error

[root@localhost bin]# yum update
bash: /bin/yum: /usr/bin/python: bad interpreter: No such file or directory

i am running a fedora 21..

python version is Python 3.4.3

Looking forward for your help in resolving this problem..

Thanks

yerunkar11 · 07-20-2015, 04:39 AM

http://stackoverflow.com/questions/1...when-using-yum

---------- Post added 07-20-15 at 03:10 PM ----------

http://www.linuxquestions.org/questi...rector-933911/

knitinfk · 07-20-2015, 05:09 AM

Hi,

thanks for the urls.. but i have tried but it didn't really work..

Do i need to change any of the yum configuration?

berndbausch · 07-20-2015, 06:02 AM

So, does /usr/bin/python exist, and is it executable?
What happens when you simply type /usr/bin/python?

knitinfk · 07-20-2015, 06:50 AM

Hi,

I have made some progress, have changed the /bin/yum to #!/usr/bin/python2 and now it is throwing this error

[root@localhost]# yum update
File "/bin/yum", line 30
yummain.main (sys.argv[1:])
^
IndentationError: expected an indented block
[root@localhost]#

John VV · 07-20-2015, 03:24 PM

yum is deprecated and not used any more
the current tool is

DNF

as to yum
did you replace the DEFAULT version of python ?
yum in f21 still used python2.6 i believe

the DEFAULT version of python from the fedora 21 base or update repo MUST!!! 100% MUST BE SET as the default python

unSpawn · 07-20-2015, 05:49 PM

Quote:

Originally Posted by John VV

yum is deprecated and not used any more

No, that's slated for F22 AFAIK.

Quote:

Originally Posted by John VV

did you replace the DEFAULT version of python ?
yum in f21 still used python2.6 i believe

He must have. F21 comes with python-2.7.something.

knitinfk · 07-20-2015, 11:33 PM

Hi John,

i have upgraded python and the current python version is 3.4.3.

Do you mean to say yum works only with 2.6 python?

I wanted to execute python scripts on my fedora also so i have upgraded python.

Thanks..

knitinfk · 07-20-2015, 11:54 PM

Hi john,

I have uninstalled 3.4 and installed 2.7 python but still i get the same error..

[root@localhost bin]# yum update
File "/bin/yum", line 30
yummain.main (sys.argv[1:])
^
IndentationError: expected an indented block

Thanks..

berndbausch · 07-21-2015, 12:12 AM

Can you show the first 35 lines or so of /usr/bin/yum (which is likely to be all of /usr/bin/yum)?
Perhaps your tinkering with the file has removed indentation.

For comparison: On my system, Centos 6.6, the corresponding lines in /usr/bin/yum look like this:

Code:

sys.path.insert(0, '/usr/share/yum-cli')
try:
    import yummain
    yummain.user_main(sys.argv[1:], exit_code=True)
except KeyboardInterrupt, e:
    print >> sys.stderr, "\n\nExiting on user cancel."
    sys.exit(1)

This runs with Python 2.6.6.

I also have a Centos 7 machine, where it looks the same, and uses Python 2.7.5

knitinfk · 07-21-2015, 12:29 AM

output of /usr/bin/yum

import sys
20 import os
21 sys.path.insert(1,'/usr/share/yum')
22 import yummain
23 from i18n import _
24 import yumlock
25
26 uid = os.geteuid()
27 lockfile = '/var/run/yum.pid'
28
29 try:
30 yummain.main (sys.argv[1:])
31 except SystemExit, e:
32 if e.code != 200:
33 if uid == 0:
34 yumlock.unlock(lockfile)
35 sys.exit(e)
36 except KeyboardInterrupt, e:
37 print _('Exiting on User Cancel')
38 if uid == 0:
39 yumlock.unlock(lockfile)
40 sys.exit(1)
41 except IOError, (errno, strerror):
42 print _('IOError - # s - %s') % (errno, strerror)
43 if uid == 0:
44 yumlock.unlock(lockfile)
45 sys.exit(1)

thanks

berndbausch · 07-21-2015, 12:52 AM

Quote:

Originally Posted by knitinfk

output of /usr/bin/yum

import sys
20 import os
21 sys.path.insert(1,'/usr/share/yum')
22 import yummain
23 from i18n import _
24 import yumlock
25
26 uid = os.geteuid()
27 lockfile = '/var/run/yum.pid'
28
29 try:
30 yummain.main (sys.argv[1:])
31 except SystemExit, e:
32 if e.code != 200:
33 if uid == 0:
34 yumlock.unlock(lockfile)
35 sys.exit(e)
36 except KeyboardInterrupt, e:
37 print _('Exiting on User Cancel')
38 if uid == 0:
39 yumlock.unlock(lockfile)
40 sys.exit(1)
41 except IOError, (errno, strerror):
42 print _('IOError - # s - %s') % (errno, strerror)
43 if uid == 0:
44 yumlock.unlock(lockfile)
45 sys.exit(1)

Add two spaces at the beginning of line 30. That should rid you of the latest error.

Unlike free-format langages like C, which use special characters like { and } for their block structure, Python requires indentation to indicate a new block.

berndbausch · 07-21-2015, 12:54 AM

Also use code tags instead of quote tags for computer text. Quote makes your indentation disappear.

knitinfk · 07-21-2015, 01:25 AM

sorry for asking this again...

can you please highight the changes you have done for /usr/bin/python.

Thanks

knitinfk · 07-21-2015, 01:29 AM

Hi,

I have added two spaces before line 30 and when i execute yum update i get the following error..

[root@localhost bin]# yum update
Traceback (most recent call last):
File "/bin/yum", line 22, in <module>
import yummain
File "/usr/share/yum/yummain.py", line 22, in <module>
import clientStuff
File "/usr/share/yum/clientStuff.py", line 18, in <module>
import rpm
ImportError: No module named rpm
[root@localhost bin]# vi /usr/bin/yum
[root@localhost bin]# yum update
File "/bin/yum", line 22
import yummain
^
IndentationError: unexpected indent