kajen3 opened a new issue #15798: URL: https://github.com/apache/airflow/issues/15798
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These questions are the first thing we need to know to understand the context. --> **Apache Airflow version**: 2.0.1 and 2.0.2 **Kubernetes version (if you are using kubernetes)** (use `kubectl version`): **Environment**: local - **Cloud provider or hardware configuration**: - **OS** (e.g. from /etc/os-release): MacOS 11.3.1 - **Kernel** (e.g. `uname -a`): - **Install tools**: https://airflow.apache.org/docs/apache-airflow/stable/start/local.html inside a new conda env with python 3.7 - **Others**: **What happened**: When running the example_python_operator the `PythonVirtualenvOperator` fails because it couldn't find a `virtualenv` file or directory. **What you expected to happen**: That the example would succeed. <!-- What do you think went wrong? --> **How to reproduce it**: <!--- As minimally and precisely as possible. Keep in mind we do not have access to your cluster or dags. If you are using kubernetes, please attempt to recreate the issue using minikube or kind. ## Install minikube/kind - Minikube https://minikube.sigs.k8s.io/docs/start/ - Kind https://kind.sigs.k8s.io/docs/user/quick-start/ If this is a UI bug, please provide a screenshot of the bug or a link to a youtube video of the bug in action You can include images using the .md style of  To record a screencast, mac users can use QuickTime and then create an unlisted youtube video with the resulting .mov file. ---> Run the example_python_operator dag. **Anything else we need to know**: <!-- How often does this problem occur? Once? Every time etc? Any relevant logs to include? Put them here in side a detail tag: <details><summary>x.log</summary> lots of stuff </details> --> ``` ***Reading local file: /Users/[USERNAME]/airflow/logs/example_python_operator/virtualenv_python/2021-05-12T12:58:31.030337+00:00/1.log [2021-05-12 14:58:34,236] {taskinstance.py:877} INFO - Dependencies all met for <TaskInstance: example_python_operator.virtualenv_python 2021-05-12T12:58:31.030337+00:00 [queued]> [2021-05-12 14:58:34,242] {taskinstance.py:877} INFO - Dependencies all met for <TaskInstance: example_python_operator.virtualenv_python 2021-05-12T12:58:31.030337+00:00 [queued]> [2021-05-12 14:58:34,242] {taskinstance.py:1068} INFO - [2021-05-12 14:58:34,242] {taskinstance.py:1069} INFO - Starting attempt 1 of 1 [2021-05-12 14:58:34,242] {taskinstance.py:1070} INFO - [2021-05-12 14:58:34,251] {taskinstance.py:1089} INFO - Executing <Task(PythonVirtualenvOperator): virtualenv_python> on 2021-05-12T12:58:31.030337+00:00 [2021-05-12 14:58:34,253] {standard_task_runner.py:52} INFO - Started process 21525 to run task [2021-05-12 14:58:34,259] {standard_task_runner.py:76} INFO - Running: ['airflow', 'tasks', 'run', 'example_python_operator', 'virtualenv_python', '2021-05-12T12:58:31.030337+00:00', '--job-id', '10', '--pool', 'default_pool', '--raw', '--subdir', '/usr/local/Caskroom/miniconda/base/envs/airflow-demo/lib/python3.7/site-packages/airflow/example_dags/example_python_operator.py', '--cfg-path', '/var/folders/24/749gpxs95rgdkck0hympsrtw0000gq/T/tmpq87t01wq', '--error-file', '/var/folders/24/749gpxs95rgdkck0hympsrtw0000gq/T/tmp7qdftbgp'] [2021-05-12 14:58:34,261] {standard_task_runner.py:77} INFO - Job 10: Subtask virtualenv_python [2021-05-12 14:58:34,291] {logging_mixin.py:104} INFO - Running <TaskInstance: example_python_operator.virtualenv_python 2021-05-12T12:58:31.030337+00:00 [running]> on host 1.0.0.127.in-addr.arpa [2021-05-12 14:58:34,310] {taskinstance.py:1283} INFO - Exporting the following env vars: AIRFLOW_CTX_DAG_OWNER=airflow AIRFLOW_CTX_DAG_ID=example_python_operator AIRFLOW_CTX_TASK_ID=virtualenv_python AIRFLOW_CTX_EXECUTION_DATE=2021-05-12T12:58:31.030337+00:00 AIRFLOW_CTX_DAG_RUN_ID=manual__2021-05-12T12:58:31.030337+00:00 [2021-05-12 14:58:34,311] {process_utils.py:135} INFO - Executing cmd: virtualenv /var/folders/24/749gpxs95rgdkck0hympsrtw0000gq/T/venvffi0x_sl [2021-05-12 14:58:34,315] {taskinstance.py:1482} ERROR - Task failed with exception Traceback (most recent call last): File "/usr/local/Caskroom/miniconda/base/envs/airflow-demo/lib/python3.7/site-packages/airflow/models/taskinstance.py", line 1138, in _run_raw_task self._prepare_and_execute_task_with_callbacks(context, task) File "/usr/local/Caskroom/miniconda/base/envs/airflow-demo/lib/python3.7/site-packages/airflow/models/taskinstance.py", line 1311, in _prepare_and_execute_task_with_callbacks result = self._execute_task(context, task_copy) File "/usr/local/Caskroom/miniconda/base/envs/airflow-demo/lib/python3.7/site-packages/airflow/models/taskinstance.py", line 1341, in _execute_task result = task_copy.execute(context=context) File "/usr/local/Caskroom/miniconda/base/envs/airflow-demo/lib/python3.7/site-packages/airflow/operators/python.py", line 493, in execute super().execute(context=serializable_context) File "/usr/local/Caskroom/miniconda/base/envs/airflow-demo/lib/python3.7/site-packages/airflow/operators/python.py", line 117, in execute return_value = self.execute_callable() File "/usr/local/Caskroom/miniconda/base/envs/airflow-demo/lib/python3.7/site-packages/airflow/operators/python.py", line 509, in execute_callable requirements=self.requirements, File "/usr/local/Caskroom/miniconda/base/envs/airflow-demo/lib/python3.7/site-packages/airflow/utils/python_virtualenv.py", line 64, in prepare_virtualenv execute_in_subprocess(virtualenv_cmd) File "/usr/local/Caskroom/miniconda/base/envs/airflow-demo/lib/python3.7/site-packages/airflow/utils/process_utils.py", line 136, in execute_in_subprocess proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, bufsize=0, close_fds=True) File "/usr/local/Caskroom/miniconda/base/envs/airflow-demo/lib/python3.7/subprocess.py", line 800, in __init__ restore_signals, start_new_session) File "/usr/local/Caskroom/miniconda/base/envs/airflow-demo/lib/python3.7/subprocess.py", line 1551, in _execute_child raise child_exception_type(errno_num, err_msg, err_filename) FileNotFoundError: [Errno 2] No such file or directory: 'virtualenv': 'virtualenv' [2021-05-12 14:58:34,319] {taskinstance.py:1532} INFO - Marking task as FAILED. dag_id=example_python_operator, task_id=virtualenv_python, execution_date=20210512T125831, start_date=20210512T125834, end_date=20210512T125834 [2021-05-12 14:58:34,358] {local_task_job.py:146} INFO - Task exited with return code 1 ``` -- This is an automated message from the Apache Git Service. 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