ImportError: with error 'is not a package'

Question

In python 3 getting into ImportError issues. My project structure is like:

cts_sap_polaris/                                                                     
|-- etc                                                                              
|   |-- clean_cts_sap_polaris.yaml                                                   
|   |-- clean_env_variables.tcl                                                      
|   |-- cts_sap_polaris_ha_combined.yaml                                             
|   |-- cts_sap_polaris.yaml                                                         
|   `-- TCL_TESTBED_CONFIGS                                                          
|-- __init__.py                                                                      
|-- jobs
|   |-- __init__.py
|   |-- __pycache__
|   |   `-- run_cts_sap_polaris.cpython-34.pyc
|   `-- run_cts_sap_polaris.py
|-- lib
|   |-- cli_check.py
|   |-- cts_sap_polaris_utils.py
|   |-- __init__.py
|   |-- router_show_cts_cmd.py
|   |-- router_show_etherchannel_cmd.py
|   |-- router_show.py
|   |-- utils.py
|   |-- validate_show_output.py
|   `-- wait_for.py
|-- scripts
|   |-- cts_sap_polaris_ha_combined.py
|   |-- cts_sap_polaris.py
|   |-- __init__.py
|   `-- __pycache__
|       `-- cts_sap_polaris.cpython-34.pyc
`-- test
    |-- code_snippets
    |-- cts_interface.json
    |-- cts_interface_summary.json
    |-- etherchannel_port_channel.json
    |-- etherchannel_port.json
    |-- __init__.py
    |-- test_cts_sap_cli.py
    `-- test_router_show.py

In scripts/cts_sap_polaris.py I am trying an import

import cts_sap_polaris.lib.cli_check as cli_check

Which is throwing this error:

ImportError: No module named 'cts_sap_polaris.lib'; 'cts_sap_polaris' is not a package.

Answer 1

Rename cts_sap_polaris.py to something else.

This name conflicts with the package name (which has the same name).

(credit goes to @jedwards on his comment)

Answer 2

From what i understand, python only searches the current directory and sys.path. So you can add to the python path at run time. A similar question has been answered here

I would suggest you to try this ..

    # scripts/cts_sap_polaris.py
    # Add additional path to current sys path
    import sys
    sys.path.insert(0,'/path/to/cts_sap_polaris/lib')
    import cli_check

Let me know if it works.