Merge pull request #2 from brooklyn-data/fix/missing-versions-dir

v1.1.1 to fix error when `~/.dbt/versions` directory doesn't exist yet.

Author: sean-rose

CHANGELOG.md

@@ -5,20 +5,23 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased](https://github.com/brooklyn-data/dbtenv/compare/v1.1.0...HEAD)
+## [Unreleased](https://github.com/brooklyn-data/dbtenv/compare/v1.1.1...HEAD)
 
 ### Added
 
 ### Changed
 
+## [1.1.1](https://github.com/brooklyn-data/dbtenv/compare/v1.1.0...v1.1.1) - 2021-07-15
+
+### Fixed
+- Fix error when `~/.dbt/versions` directory doesn't exist yet.
+
 ## [1.1.0](https://github.com/brooklyn-data/dbtenv/compare/v1.0.0...v1.1.0) - 2021-07-14
 
 ### Added
-
 - Support installation of dbt versions >= 0.20.0 in a Python 3.9 environment.
 
 ## [1.0.0](https://github.com/brooklyn-data/dbtenv/releases/tag/v1.0.0) - 2021-04-16
 
 ### Added
-
 - Initial release

dbtenv/__init__.py

@@ -14,7 +14,7 @@
 from typing import Any, List, Optional
 
 
-__version__ = '1.1.0'
+__version__ = '1.1.1'
 
 VENVS_DIRECTORY = os.path.normpath('~/.dbt/versions')
 

dbtenv/pip.py

@@ -20,6 +20,8 @@
 
 
 def get_installed_pip_dbt_versions(env: Environment) -> List[Version]:
+    if not os.path.isdir(env.venvs_directory):
+        return []
     with os.scandir(env.venvs_directory) as venvs_dir_scan:
         possible_versions = (Version(entry.name) for entry in venvs_dir_scan if entry.is_dir())
         return [version for version in possible_versions if PipDbt(env, version).is_installed()]