ImportError: cannot import name 'Session' from 'curl_cffi'

Your curlcffi predates the Session API (it arrived in the 0.5 line). Upgrade with `python -m pip install -U curlcffi and the import works. If pip show curl_cffi` shows nothing at all, you have the missing install instead.

The error

ImportError: cannot import name 'Session' from 'curl_cffi'

Fix it

1. Check what is installed

python -m pip show curl_cffi | head -2

Expected: either nothing (missing install) or a pre-0.5 version.

2. Upgrade (or install)

python -m pip install -U curl_cffi

Expected: installs the current release with the Session API.

3. Confirm

python -c "from curl_cffi import Session; print('ok')"

Expected: prints ok.

When this applies

• the ImportError names Session from curl_cffi
• a lockfile or tutorial from the early curl_cffi era

When it does NOT apply

• No module named 'curl_cffi' is the missing install
• cannot import name 'RetryStrategy' is the same shape one feature newer

Compatibility

Session arrived in curl_cffi 0.5. Anything older lacks it. Current releases are well past that.

Why it happens

Early curlcffi had a different (more requests-like functional) API, and the Session class came later. Code written against modern curlcffi imports a name that old installs never defined. Upgrading aligns the install with the code.

Edge cases

• The PyPI name is curl-cffi (dash), the import is curl_cffi (underscore). pip install curl_cffi fails; use the dash.
• Old code may also use curl_cffi.requests.Session (the requests-lookalike path). That still exists; the top-level Session is the newer canonical import.

In gh:michele0303/tiktok-live-recorder#296 the reporter hit ImportError: cannot import name 'Session' from 'curlcffi' with an outdated curlcffi, and upgrading to a release containing the Session API resolved it. Source: https://github.com/michele0303/tiktok-live-recorder/issues/296