snarkmaster

/*
This shows one of two possible methods (as of Linux v6.4.9) for seting up a
MNT_LOCK_READONLY mount, which is a mount that cannot be remounted
read-write even by a fully privileged super-user.  The same principle applies
to locking NODEV, NOSUID, and NOEXEC [1].

Hopefully, at some point the Linux kernel will support setting locked bits
via `mount_setattr` [2], but as of v6.4.9, this appears to be the simplest way.

This `attach_recursive_mnt`-based method works best if you can have a

snarkmaster

/*
This shows one of two possible methods (as of Linux v6.4.9) for seting up a
MNT_LOCK_READONLY mount, which is a mount that cannot be remounted
read-write even by a fully privileged super-user.  The same principle applies
to locking NODEV, NOSUID, and NOEXEC [1].

Hopefully, at some point the Linux kernel will support setting locked bits
via `mount_setattr` -- see [2].

This works as follows:

snarkmaster

/*
This is a unfinished program that's part of a `libcap-ng` bug report.

The bug repro looks like this -- the target PID 3554846 is just a random 
unprivileged process:

echo target: && 
    grep ^Cap /proc/3554846/status && 
    sudo capsh --drop=cap_chown -- -c '
        echo under capsh: && 

snarkmaster

'''

`deepfrozen`: Recursively immutable types that support inheritance.

  - Unlike frozen `dataclass`es or `NamedTuple`s, this lets you make
    types recursively immutable.
  - Unlike `dataclass` the immutability guarantee is strong, you cannot
    bypass it via `setattr`.
  - Unlike `NamedTuple` this supports inheritance.
  - Unlike `PyRecord`, this is immutable and hashable.

snarkmaster

class _RpmLocationParser(AbstractContextManager):
    '''
    Parses through -primary.xml.gz and extracts `href` from each `location`.
    NB: This XML parsing takes ~4 seconds, while it takes ~1.5 seconds to
    unpack -primary.sqlite.bz2 and `SELECT location_href FROM packages`.
    '''

    def __init__(self):
        self.decompressor = zlib.decompressobj(wbits=zlib.MAX_WBITS + 16)
        self.xml_parser = XMLPullParser(['start'])

snarkmaster

response = query_bistro(args, {
    'h': {'handler': 'histogram'},
    'j': {'handler': 'jobs'},
})
jobs = response['j']['data']
histograms = response['h']['data']['histograms']

for job_id, job in jobs.iteritems():
    print('Number of done or failed tasks for', job_id, '-', sum(
        count for enc_bits, count in histograms[job_id][

snarkmaster

From afb9cfba2854c48e1995e1c4940d679469febd94 Mon Sep 17 00:00:00 2001
From: Alexey Spiridonov <XXX@gmail.com>
Date: Sun, 5 Aug 2018 15:36:06 -0700
Subject: [PATCH] Switch to a more complex plugin invocation API

---
 mypy/plugin.py  | 11 ++++++-----
 mypy/semanal.py |  7 ++++++-
 2 files changed, 12 insertions(+), 6 deletions(-)

snarkmaster

(mypy) lesha@ubuntu:~/github/snarkmaster/mypy$ ./runtests.py 
PARALLEL 1
SUMMARY  127 tasks selected
============================= test session starts ==============================
platform linux -- Python 3.6.4, pytest-3.4.0, py-1.5.2, pluggy-0.6.0
rootdir: /home/lesha/github/snarkmaster/mypy, inifile: pytest.ini
plugins: xdist-1.22.0, forked-0.2, cov-2.5.1
gw0 [5691]
scheduling tests via LoadScheduling
..............................s......................................... [  1%]