Informatives messages for missings libraries

2 files changed, 26 insertions, 7 deletions

diff --git a/lib/strippers.py b/lib/strippers.py
index dfdf1ea..61030a7 100644
--- a/lib/strippers.py
+++ b/lib/strippers.py
@@ -20,24 +20,42 @@ STRIPPERS = {
     'application/officeopenxml': office.OpenXmlStripper,
 }
 
-try:  # PDF support
+
+# PDF support
+pdfSupport = True
+try:
     import poppler
+except ImportError:
+    print('Unable to import python-poppler: not PDF support')
+    pdfSupport = False
+
+try:
     import cairo
+except ImportError:
+    print('Unable to import python-cairo: no PDF support')
+    pdfSupport = False
+
+try:
     import pdfrw
+except ImportError:
+    print('Unable to import python-pdfrw: no PDf support')
+    pdfSupport = False
+
+if pdfSupport:
     STRIPPERS['application/x-pdf'] = office.PdfStripper
     STRIPPERS['application/pdf'] = office.PdfStripper
-except ImportError:
-    print('Unable to import python-poppler and/or python-cairo \
-and/or pdfrw: no PDF support')
 
-try:  # mutangen-python : audio format support
+
+# audio format support with mutagen-python
+try:
     import mutagen
     STRIPPERS['audio/x-flac'] = audio.FlacStripper
     STRIPPERS['audio/vorbis'] = audio.OggStripper
 except ImportError:
     print('Unable to import python-mutagen: limited audio format support')
 
-try:  # check if exiftool is installed on the system
+# exiftool
+try:
     subprocess.Popen('exiftool', stdout=open('/dev/null'))
     import exiftool
     STRIPPERS['image/jpeg'] = exiftool.JpegStripper
diff --git a/test/test.py b/test/test.py
index 630c157..f09e1c5 100644
--- a/test/test.py
+++ b/test/test.py
@@ -28,6 +28,7 @@ FILE_LIST = zip(clean, dirty)
 try:  # PDF render processing
     import poppler
     import cairo
+    import pdfrw
 except:
     FILE_LIST.remove(('clean é.pdf', 'dirty é.pdf'))
 
@@ -37,7 +38,7 @@ except:
     pass  # since wr don't have any ogg for now
     #FILE_LIST.remove(('clean.ogg', 'dirty.ogg'))
 
-try:  # file format managed by exiftool
+try:  # file format exclusively managed by exiftool
     subprocess.Popen('exiftool', stdout=open('/dev/null'))
 except:
     pass  # None for now