ulope

homebrew: make update accept formula names

Homebrew has two commands with similar names - update and upgrade. Update is intended to update brew itself while upgrade is used to update individual formula.

This division is confusing to some.

Therefore here are shell functions for bash and zsh that reroute update to upgrade if a formula name is given.

ulope

Attaching to geth-goerli_geth_1
INFO [09-07|07:59:30.638] Starting Geth on Görli testnet... 
INFO [09-07|07:59:30.639] Enabling metrics collection 
INFO [09-07|07:59:30.639] Enabling stand-alone metrics HTTP endpoint address=0.0.0.0:9191
INFO [09-07|07:59:30.639] Starting metrics server                  addr=http://0.0.0.0:9191/debug/metrics
INFO [09-07|07:59:30.642] Maximum peer count                       ETH=50 LES=0 total=50
INFO [09-07|07:59:30.644] Smartcard socket not found, disabling    err="stat /run/pcscd/pcscd.comm: no such file or directory"
INFO [09-07|07:59:30.649] Set global gas cap                       cap=50,000,000
INFO [09-07|07:59:30.652] Allocated trie memory caches             clean=154.00MiB dirty=256.00MiB
INFO [09-07|07:59:30.652] Allocated cache and file handles         database=/root/.ethereum/geth/chaindata cache=512.00MiB handles=524,288

ulope

(function() {
    let result = [
        'These;Auswahl;Gewichtet'
    ];
    for (let i = 0; i < WOMT_nThesen; i++) {
        result.push([WOM.getThesis(i, false), S_aThesen[i], S_aThemen[i]].join(';'))
    };
    return result.join('\n');
})()

ulope

asyncio's create_datagram_socket seems to leak socket objects when Protocol instances go out of scope. The same is not the case with regular socket objects.

Usage:

• Run this (optional pass the open file limit as positional argument, defaut: 256)
• In another terminal run watch 'lsof -p <pid> | grep UDP | wc -l'
• Observe that the number stays at 50 during the sync run
• In the async run the number will increase until a "Too many open files" exception is raised

ulope

if [ ! -f /tmp/brew-prefix ]; then
    echo -n $(brew --prefix) > /tmp/brew-prefix
fi

if [ ! -f /tmp/brew-prefix-openssl ]; then
    echo -n $(brew --prefix openssl) > /tmp/brew-prefix-openssl
fi

if [ ! -f /tmp/brew-prefix-readline ]; then
    echo -n $(brew --prefix readline) > /tmp/brew-prefix-readline

ulope

# This helps run a globally installed poetry with specific versions of python.
# When run from inside a poetry project the correct version is automatically 
# picked up from pyproject.toml.

# Outside of a project (e.g. `poetry new`) a specific version can be chosen by
# setting a `PYTHON` env variable.
# e.g.:
#
#     PYTHON=3.7 poetry new someproject

ulope

# This causes Python to crash with 
# `SystemError: Objects/tupleobject.c:851: bad argument to internal function`
# within a few hundered iterations at most. Typically only a handful are needed though.
# Most likely reason is: https://bugs.python.org/issue15108

from io import StringIO

import gevent

ulope

Replaying state changes 22578
>>> 153 ActionInitTarget
Events: ['SendProcessed', 'SendSecretRequest']
Updated partner nonce None -> 1
>>> 157 ReceiveUnlock
Events: ['SendProcessed', 'EventPaymentReceivedSuccess', 'EventUnlockClaimSuccess', 'SendProcessed']
Updated partner nonce 1 -> 2
>>> 162 ActionInitTarget
Events: ['SendProcessed', 'SendSecretRequest']
Updated partner nonce 2 -> 3

ulope

def implicit_chaining():
    """
    This is the Python 2 style. Just raising another exception from within an except block.
    In Python 3 this causes the exceptions to be chained with the message:
    
        During handling of the above exception, another exception occurred:
    
    Which is usually not correct when just re-raising with a more appropriate type.
    """
    try:

ulope

import sys
from traceback import print_list, StackSummary, walk_stack


def print_stack(f=None, limit=None, file=None):
    """ Just like `traceback.print_stack()` but shows locals of each frame. """
    if f is None:
        f = sys._getframe().f_back
    stack = StackSummary.extract(walk_stack(f), limit=limit, capture_locals=True)
    stack.reverse()