catch zbar import error

.github/workflows/ci.yml

@@ -25,11 +25,11 @@ jobs:
         uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
-      - name: Install zbar lib for QReader (Linux)
+      - name: Install zbar shared lib for QReader (Linux)
         if: runner.os == 'Linux'
         run: |
           # FIXME sudo apt-get install -y libzbar0
-      - name: Install zbar lib for QReader (macOS)
+      - name: Install zbar shared lib for QReader (macOS)
         if: runner.os == 'macOS'
         run: |
           brew install zbar

.github/workflows/nightly.yml

@@ -23,11 +23,11 @@ jobs:
         uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
-      - name: Install zbar lib for QReader (Linux)
+      - name: Install zbar shared lib for QReader (Linux)
         if: runner.os == 'Linux'
         run: |
           sudo apt-get install -y libzbar0
-      - name: Install zbar lib for QReader (macOS)
+      - name: Install zbar shared lib for QReader (macOS)
         if: runner.os == 'macOS'
         run: |
           brew install zbar

extract_otp_secret_keys.py

@@ -187,7 +187,10 @@ def convert_img_to_line(filename):
                 abort('\nERROR: Unable to open file for reading.\ninput file: {}'.format(filename))
 
             # dynamic import of QReader since this module has a dependency to zbar lib
+            try:
                 from qreader import QReader
+            except ImportError as e:
+                abort('\nERROR: Cannot import QReader module probably due to missing zbar shared library. Exception:\n{}'.format(str(e)))
 
             decoder = QReader()
             decoded_text = decoder.detect_and_decode(image=image)