Latest version 0.14.0 fails to install with pip in virtual environment with error failed to build 'curl_cffi' when getting requirements to build wheel

[rksgh55]

Please check the following items and answer all the questions when reporting a bug,
otherwise it will be closed immediately.

• This is NOT a site-related "bugs", e.g. some site blocks me when using curl_cffi,
  UNLESS you have verified that the reason is imperfect impersonation.
• A code snippet that can reproduce this bug will be provided, even if it's a one-liner.
• Version and environment information will be pasted as below.

Describe the bug
A clear and concise description of what the bug is.

To Reproduce

# Minimal reproducible code, like target websites, and request parameters, etc.

Expected behavior
A clear and concise description of what you expected to happen.

Versions

• OS: [e.g. linux x64, Windows 7, macOS Sequoia]
• curl_cffi version [e.g. 0.5.7, 0.7.3]
• pip freeze dump

Additional context

• Which session are you using? async or sync?
• If using async session, which loop implementation are you using?
• If you have tried, does this work with other http clients, e.g. requests, httpx or real browsers.

[lexiforest]

Most likely you are using a deprecated environment. We only support Python 3.10+ as of 0.14. Feel free to reopen if it's indeed a bug.

[rksgh55]

macOS Big Sur - 11.7.10 (20G1427), with Home Brew installed.

---

python --version
Python 3.14.2

rm -rf .venv
python3 -m venv .venv
source .venv/bin/activate

---

%|=> pip install curl_cffi --no-cache-dir
Collecting curl_cffi
Downloading curl_cffi-0.14.0.tar.gz (162 kB)
Installing build dependencies ... done
Getting requirements to build wheel ... error
error: subprocess-exited-with-error

× Getting requirements to build wheel did not run successfully.
│ exit code: 1
╰─> [61 lines of output]
Using /Users/runner/work/_temp/install/lib to store libcurl-impersonate
Downloading libcurl-impersonate from https://github.com/lexiforest/curl-impersonate/releases/download/v1.2.5/libcurl-impersonate-v1.2.5.x86_64-macos.tar.gz...
Unpacking downloaded files...
Traceback (most recent call last):
...
File "/private/var/folders/sd/m72_mnjn1_j9kfg0r1md2fsh0000gn/T/pip-build-env-x1mw34af/overlay/lib/python3.14/site-packages/cffi/setuptools_ext.py", line 26, in execfile
exec(code, glob, glob)
~~~~^^^^^^^^^^^^^^^^^^
File "scripts/build.py", line 144, in
download_libcurl()
~~~~~~~~~~~~~~~~^^
File "scripts/build.py", line 73, in download_libcurl
os.makedirs(arch["libdir"], exist_ok=True)
~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "", line 226, in makedirs
File "", line 226, in makedirs
File "", line 226, in makedirs
[Previous line repeated 1 more time]
File "", line 236, in makedirs
PermissionError: [Errno 13] Permission denied: '/Users/runner'
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed to build 'curl_cffi' when getting requirements to build wheel

[lexiforest]

Sorry about that, we don't support macOS version before 15.0 in 0.14, we are trying to bring it back in 0.15.

[bjia56]

@lexiforest is there an issue open for bringing back earlier macOS support that we can follow? our project relies on curl_cffi and has users still on old macOS, so we're unable to upgrade. we're concerned that falling behind would mean we lose modern browser compatibility.

alternatively, if you're able to outline the technical challenges of targeting earlier macOS (which I assume is more involved than setting MACOSX_DEPLOYMENT_TARGET), I might be able to open a patch to fix it.

[lexiforest]

Recent version of c-ares wouldn't build on older version of macOS and Linux. I'll try again, and if not working, remove built-in c-ares in 0.14.1. Sorry for all the trouble.