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Mish Ushakov a6b1cf4bcf fix(python-sdk): strip colon-separated SGR escape codes in build logs (#1522 )

### What

Cherry-picks the fix from #1519.

`strip_ansi_escape_codes` in the Python SDK only matched
semicolon-separated CSI
parameters, so colon-separated SGR sequences leaked literal escape
garbage into
template build-log messages. This widens the parameter class from `;` to
`[;:]`
so colon-separated sequences are stripped too, matching the JS SDK's
`stripAnsi`.

Modern terminals emit colon-separated SGR sequences:

- 256-color: `\x1b[38:5:82m`
- truecolor: `\x1b[38:2::255:0:0m`
- curly underline: `\x1b[4:3m`

The two SDKs share one source (chalk/ansi-regex) and the JS twin was
already
updated to support colons (`packages/js-sdk/src/utils.ts:95`, comment:
"supports
; and :"); the Python port lagged behind. `strip_ansi_escape_codes` is
consumed
by `LogEntry.__post_init__`
(`packages/python-sdk/e2b/template/logger.py`), so
the leftover escape bytes showed up in Python build logs only.

### The one-line fix

```python
# packages/python-sdk/e2b/template/utils.py:319
- r"(?:(?:\d{1,4}(?:;\d{0,4})*)?[\dA-PR-TZcf-nq-uy=><~]))",
+ r"(?:(?:\d{1,4}(?:[;:]\d{0,4})*)?[\dA-PR-TZcf-nq-uy=><~]))",
```

### Usage example (before / after)

```python
from e2b.template.utils import strip_ansi_escape_codes

# 256-color, colon-separated
strip_ansi_escape_codes("\x1b[38:5:82mX\x1b[0m")
# before: ":5:82mX"   after: "X"

# truecolor, colon-separated
strip_ansi_escape_codes("\x1b[38:2::255:0:0mRED\x1b[0m")
# before: ":2::255:0:0mRED"   after: "RED"

# semicolon variants already worked and still do
strip_ansi_escape_codes("\x1b[38;5;82mX\x1b[0m")  # "X"  (unchanged)
```

### Tests

Unit tests at

`packages/python-sdk/tests/shared/template/utils/test_strip_ansi_escape_codes.py`
(no API key / sandbox): colon-256, colon-truecolor, curly-underline,
plus
basic/semicolon regressions. All 7 pass locally.

### Changeset

`.changeset/python-strip-ansi-colon.md` (patch on `@e2b/python-sdk`).

### Notes

Original PR: #1519 (by @anxkhn). Opened against a fresh branch off
`main` per
request, rather than merging #1519 directly.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Anas Khan <83116240+anxkhn@users.noreply.github.com>

2026-07-02 10:45:49 -07:00

config.json

Remove e2b-docs from changeset ignore (#1211 )

2026-03-18 00:42:44 -07:00

copy-compression-option.md

feat(sdk): add gzip option to template copy layer (#1482 )

2026-07-01 11:50:21 +02:00

generic-paginator.md

Introduce generic paginator base class for JS and Python SDKs (#1491 )

2026-06-26 14:53:56 +02:00

migrate-name-override.md

feat(cli): add config override flags to template migrate (#1494 )