Troubleshooting

This page covers the most common failure modes and how to debug them quickly.

TLS Errors

If deepeval fails to upload results to Confident AI with an error like:

SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate

it usually means certificate verification is failing in the local environment (not inside deepeval).

Run these checks from the same machine and Python environment where you run deepeval.

1. Check with curl

curl -v https://api.confident-ai.com/

If curl reports an SSL / certificate error, copy the full output.

2. Check with Python (requests)

unset REQUESTS_CA_BUNDLE SSL_CERT_FILE SSL_CERT_DIR
python -m pip install -U certifi
python - << 'PY'
import requests

r = requests.get("https://api.confident-ai.com")
print(r.status_code)
PY

If this fails with a certificate error, copy the full output.

3. Re-run deepeval

If the Python snippet succeeds, re-run your deepeval evaluation from the same terminal session and see whether the upload still fails. If you still get the TLS error, please include the full traceback and the output of the two checks above when reporting the issue.

Configure Logging

deepeval uses the standard Python logging module. To see logs, your application (or test runner) needs to configure logging output.

import logging

logging.basicConfig(level=logging.DEBUG)

deepeval also exposes a few environment flags that can make debugging easier:

• LOG_LEVEL: sets the global log level used by deepeval (accepts standard names like DEBUG, INFO, etc.).
• DEEPEVAL_VERBOSE_MODE: enables additional warnings and diagnostics.
• DEEPEVAL_LOG_STACK_TRACES: includes stack traces in retry logs.
• DEEPEVAL_RETRY_BEFORE_LOG_LEVEL: log level for retry "before sleep" messages.
• DEEPEVAL_RETRY_AFTER_LOG_LEVEL: log level for retry "after attempt" messages.

Note that retry logging levels are read at call-time.

Timeout Tuning

If evaluations frequently time out (or appear to hang), the quickest fix is usually to increase the overall per-task time budget and reduce the number of retries.

deepeval uses an outer time budget per task (metric / test case). It can also apply a per-attempt timeout to individual provider calls. If you don’t set a per-attempt override, deepeval may derive one from the outer budget and the retry settings.

Key settings:

• DEEPEVAL_PER_TASK_TIMEOUT_SECONDS_OVERRIDE: total time budget per task (seconds), including retries.
• DEEPEVAL_PER_ATTEMPT_TIMEOUT_SECONDS_OVERRIDE: per-attempt timeout for provider calls (seconds).
• DEEPEVAL_TASK_GATHER_BUFFER_SECONDS_OVERRIDE: extra buffer reserved for async gather / cleanup.
• DEEPEVAL_RETRY_MAX_ATTEMPTS: total attempts (first try + retries).
• DEEPEVAL_RETRY_INITIAL_SECONDS, DEEPEVAL_RETRY_EXP_BASE, DEEPEVAL_RETRY_JITTER, DEEPEVAL_RETRY_CAP_SECONDS: retry backoff tuning.
• DEEPEVAL_SDK_RETRY_PROVIDERS: list of provider slugs that should use SDK-managed retries instead of deepeval retries (use ['*'] for all).

A common debugging setup is to temporarily increase budgets:

export LOG_LEVEL=DEBUG
export DEEPEVAL_VERBOSE_MODE=1
export DEEPEVAL_PER_TASK_TIMEOUT_SECONDS_OVERRIDE=600
export DEEPEVAL_RETRY_MAX_ATTEMPTS=2

Dotenv Loading

deepeval loads dotenv files at import time (import deepeval). In pytest, this can pull in a project .env you didn’t intend to load. Dotenv never overrides existing process env vars. Lowest to highest: .env, .env.{APP_ENV}, .env.local.

Controls: DEEPEVAL_DISABLE_DOTENV=1 (skip) and ENV_DIR_PATH (dotenv directory, default: current working directory).

DEEPEVAL_DISABLE_DOTENV=1 pytest -q
ENV_DIR_PATH=/path/to/project pytest -q
APP_ENV=production pytest -q

Save Config

deepeval settings are cached. If you change environment variables at runtime and don’t see the change, restart the process or call:

from deepeval.config.settings import reset_settings

reset_settings(reload_dotenv=True)

To persist settings changes from code, use edit():

from deepeval.config.settings import get_settings

settings = get_settings()
with settings.edit(save="dotenv"):
    settings.DEEPEVAL_VERBOSE_MODE = True

Computed fields (like the derived timeout settings) are not persisted.

Report issue

If you open a GitHub issue, please include:

• deepeval version
• OS + Python version
• A minimal repro script
• Full traceback
• Logs with LOG_LEVEL=DEBUG
• Any non-default timeout/retry env vars you have set

Please redact API keys and any other secrets.