How to loop over paths in python?

Question

I am very new to python and programming.

I want to loop over these path:

/group/e000055/evtgen/00/all/00/  
/group/e000055/evtgen/00/all/01/    
/group/e000055/evtgen/00/all/02/

/group/e000055/evtgen/01/all/00/   
/group/e000055/evtgen/01/all/01/      
/group/e000055/evtgen/01/all/02/     

/group/e000055/evtgen/02/all/00/   
/group/e000055/evtgen/02/all/01/      
/group/e000055/evtgen/02/all/02/

After evtgen I have one stream start from 00 and and sub stream continues to 10 from 00.
Then another stream starts at 01 and again sub stream starts from 00 to 10.

I want to loop over all those path to submit jobs in python.

Could you please provide me a skeleton code for it.

Thanks in Advance.

Regards

Put a for loop inside a for loop.

Mateen Ulhaq
– Mateen Ulhaq

2020-09-18 09:38:25 +00:00
Commented Sep 18, 2020 at 9:38 — Mateen Ulhaq
– Mateen Ulhaq, Commented Sep 18, 2020 at 9:38

Zaraki Kenpachi · Accepted Answer · 2020-09-18 09:46:20Z

1

Use something like this:

for i in range(10):
    for j in range(10):
        print('/group/e000055/evtgen/0%s/all/0%s/' % (i,j))

Output:

/group/e000055/evtgen/00/all/00/
/group/e000055/evtgen/00/all/01/
/group/e000055/evtgen/00/all/02/
...
...
/group/e000055/evtgen/09/all/08/
/group/e000055/evtgen/09/all/09/

answered Sep 18, 2020 at 9:46

Zaraki Kenpachi

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Comments

wilbur4321 · Accepted Answer · 2020-11-20 16:13:56Z

1

Are you creating these names, or do these paths already exist and you want to get a list of them? If the latter, the glob function is what you want.

>>> import glob
>>> print(glob.glob("/usr/lib/*/*.so"))
['/usr/lib/systemd/libsystemd-shared-245.so', '/usr/lib/tc/q_atm.so', '/usr/lib/tc/m_ipt.so', '/usr/lib/tc/m_xt.so', '/usr/lib/man-db/libmandb.so', '/usr/lib/man-db/libman.so', '/usr/lib/man-db/libman-2.9.1.so', '/usr/lib/man-db/libmandb-2.9.1.so',

answered Nov 20, 2020 at 16:13

wilbur4321

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Comments

footfalcon · Accepted Answer · 2020-09-18 09:52:07Z

0

path = '/group/e000055/evtgen/0'

for i in range(3):
    path1 = path + str(i) + '/all/0'
    for j in range(1, 4):
        print(path1 + str(j) + '/')

output:

/group/e000055/evtgen/00/all/01/
/group/e000055/evtgen/00/all/02/
/group/e000055/evtgen/00/all/03/
/group/e000055/evtgen/01/all/01/
/group/e000055/evtgen/01/all/02/
/group/e000055/evtgen/01/all/03/
/group/e000055/evtgen/02/all/01/
/group/e000055/evtgen/02/all/02/
/group/e000055/evtgen/02/all/03/

answered Sep 18, 2020 at 9:52

footfalcon

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