Vadim Kantorov vadimkantorov
vadimkantorov
/ regexisodate.py
Last active
July 3, 2026 12:58
Python ISO8601 date (YYYY-MM-DD) regex and testing script, handling leap years
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| import datetime | |
| import re | |
| # https://regexlib.com/REDetails.aspx?regexp_id=3344&AspxAutoDetectCookieSupport=1 | |
| # http://stackoverflow.com/questions/3143070/javascript-regex-iso-datetime/7221570#7221570 | |
| re_iso8601date = r'^(?:(?=[02468][048]00|[13579][26]00|[0-9][0-9]0[48]|[0-9][0-9][2468][048]|[0-9][0-9][13579][26])\d{4}(?:(-|)(?:(?:00[1-9]|0[1-9][0-9]|[1-2][0-9][0-9]|3[0-5][0-9]|36[0-6])|(?:01|03|05|07|08|10|12)(?:\1(?:0[1-9]|[12][0-9]|3[01]))?|(?:04|06|09|11)(?:\1(?:0[1-9]|[12][0-9]|30))?|02(?:\1(?:0[1-9]|[12][0-9]))?|W(?:0[1-9]|[1-4][0-9]|5[0-3])(?:\1[1-7])?))?)$|^(?:(?![02468][048]00|[13579][26]00|[0-9][0-9]0[48]|[0-9][0-9][2468][048]|[0-9][0-9][13579][26])\d{4}(?:(-|)(?:(?:00[1-9]|0[1-9][0-9]|[1-2][0-9][0-9]|3[0-5][0-9]|36[0-5])|(?:01|03|05|07|08|10|12)(?:\2(?:0[1-9]|[12][0-9]|3[01]))?|(?:04|06|09|11)(?:\2(?:0[1-9]|[12][0-9]|30))?|(?:02)(?:\2(?:0[1-9]|1[0-9]|2[0-8]))?|W(?:0[1-9]|[1-4][0-9]|5[0-3])(?:\2[1-7])?))?)$' | |
| for yyyy in range(1000, 3001): | |
| for mm in range(1, 13): | |
| for dd in range(1, 32): |
vadimkantorov
/ paypaldonate.html
Last active
July 17, 2026 16:08
PayPal donation form primer (with preset amounts and custom amount) in pure HTML / CSS without any JavaScript or tracking pixels
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <!-- | |
| - Modeled after PayPal Giving Fund donation form: https://www.paypal.com/fr/fundraiser/charity/4864486 | |
| - Supports preset donation amounts and custom amount | |
| - Contains two HTML forms because cannot put in a single form radio preset amount input and text custom amount input | |
| - Inlines in two copies of business email, currency code, item name (for https://russie-Libertes.org) | |
| - Verification/tracking pixel must be used for method="post" | |
| - Default preset amount is highlighted with a heart symbol | |
| - Unique form ids must be used for several forms |
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| # git clone https://gist.github.com/vadimkantorov/07a421f676f8af94457732f8e9127dde | |
| # cd 07a421f676f8af94457732f8e9127dde | |
| # uv venv | |
| # uv sync | |
| # source .venv/bin/activate # uv run python | |
| # https://github.com/pytorch/pytorch/issues/160875#issuecomment-4183789164 | |
| # https://github.com/vllm-project/vllm/issues/24218 | |
| [build-system] |
vadimkantorov
/ html2xhtml.py
Last active
April 2, 2026 12:30
Primer of html2xml converter in python using html.parser and xml.dom.minidom modules
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| # python html2xhtml.py test.html test.xhtml | |
| import html.parser | |
| import xml.dom.minidom | |
| class HTMLToMinidom(html.parser.HTMLParser): | |
| # https://developer.mozilla.org/en-US/docs/Glossary/Void_element | |
| def __init__(self, void_elements = ('area', 'base', 'br', 'col', 'embed', 'hr', 'img', 'input', 'link', 'meta', 'param', 'source', 'track', 'wbr')): | |
| super().__init__() | |
| self.doc = xml.dom.minidom.Document() |
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| alias cmdline='ps --no-headers -o comm,args -p' | |
| cmdline 1 | |
| # can produce JSON, but without process args | |
| alias notbrokenjson='ps --no-headers -o '\''{"pcpu": %C, "group": "%G", "PPID": %P, "user": "%U", "comm": "%c", "rgroup": "%g", "nice": "%n", "pid": %p, "pgid": %r, "etime": "%t", "ruser": "%u", "time": "%x", "tty": "%y", "vsz": %z}'\'' -p' | |
| notbrokenjson 1 > notbroken.json | |
| # does not remove escape sequences or quotes in args - this will break JSON format for some processes | |
| alias brokenjson='ps --no-headers -o '\''{"pcpu": %C, "group": "%G", "PPID": %P, "user": "%U", "args": "%a", "comm": "%c", "rgroup": "%g", "nice": "%n", "pid": %p, "pgid": %r, "etime": "%t", "ruser": "%u", "time": "%x", "tty": "%y", "vsz": %z}'\'' -p' | |
| brokenjson 1 > brokenjson.json |
vadimkantorov
/ pyproject.toml
Last active
September 4, 2025 05:25
Install and pin nighly vllm using pyproject.toml and uv
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| # git clone https://gist.github.com/vadimkantorov/fe63f8628ff6cad460e934e1d7ed650b | |
| # cd fe63f8628ff6cad460e934e1d7ed650b | |
| # uv venv | |
| # uv sync | |
| # https://github.com/vllm-project/vllm/pull/20358#issuecomment-3247178818 | |
| # https://github.com/vllm-project/vllm/issues/9244 | |
| # https://github.com/astral-sh/uv/issues/8082 | |
| # https://github.com/vllm-project/vllm/issues/24126 |
vadimkantorov
/ logging_jsonl.py
Last active
August 29, 2025 21:57
Logging as jsonl using vanilla Python logging
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| # https://stackoverflow.com/questions/71944328/how-to-implement-json-format-logs-in-python | |
| import json | |
| import logging | |
| # https://docs.python.org/3/library/logging.html#logrecord-attributes | |
| formatter = type('JsonFormatter', (logging.Formatter, ), dict(format = lambda self, record: json.dumps(dict(time = self.formatTime(record), level = record.levelname, message = record.getMessage(), module = record.module, lineno = record.lineno)) ))() | |
| # simpler version below does not escape quotes in message and does not delete newlines in message | |
| # formatter = logging.Formatter('{\"time\": \"%(asctime)-s\", \"level\": \"%(levelname)-s\", \"message\": \"%(message)s\", \"module\": \"%(module)s\", \"lineno\": %(lineno)d}') |
vadimkantorov
/ ! jinja2_cli_example.sh
Last active
August 18, 2025 18:42
One-liner basic CLI for jinja2, context in https://github.com/pallets/jinja/issues/2113
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| echo '{"site": {"hello": "world"}}' > foo.json | |
| echo 'Hello {{ site.hello }}' > foo.txt.j2 | |
| bash j2.sh -t foo.txt.j2 -i foo.json -o foo.txt | |
| cat foo.txt | |
| source function.sh | |
| j2 -t foo.txt.j2 -i foo.json -o foo.txt | |
| cat foo.txt | |
| unset -f j2 |
vadimkantorov
/ logsumexp.py
Last active
August 6, 2025 14:09
Example of two-level aggregation for LogSumExp in Triton-lang (only forward pass), created for investigation of https://github.com/volcengine/verl/issues/2899
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| # Extracted and simplified the two-level aggregation approach (first, parallel aggregation in blocks, then final sequential aggregation) from https://github.com/volcengine/verl/blob/main/verl/utils/kernel/kernels.py | |
| # Examples of single-level sequential, online aggregation approaches: | |
| # - https://github.com/linkedin/Liger-Kernel/blob/main/src/liger_kernel/ops/cross_entropy.py | |
| # - https://github.com/Dao-AILab/flash-attention/blob/main/flash_attn/ops/triton/cross_entropy.py | |
| # logsumexp_torch has some eager pseudo/code in PyTorch which emulates what Triton does, except that BLOCK_SIZE_M equials to M | |
| # tl.program_id(axis=0).to(tl.int64) is used for https://arxiv.org/abs/2410.10989 and https://github.com/linkedin/Liger-Kernel/blob/05b43a14913ced3776aa3fc50020089b8c0d63c1/src/liger_kernel/ops/cross_entropy.py#L77-L79 | |
| # sample_verl.pt is derived from the inputs (logits = torch.matmul(hidden, weights) uploaded by @WindowsXP-Beta in https://github.com/volcengine/verl/issues/2656#issuecomment-3131136498 ) | |
| # created for |
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| nvidia-smi -q -x | grep "</pid>" | tr -d "</pid>\t" |
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