obi import: fixed bug caused by new behaviour of StopIteration

exceptions in Python>=3.7

python/obitools3/parsers/fastq.pyx

@@ -103,7 +103,11 @@ def fastqWithQualityIterator(lineiterator,
         yield seq
 
         read+=1
-        hline = next(i)
+        try:
+            hline = next(i)
+        except StopIteration:
+            return
+
     
 
 def fastqWithoutQualityIterator(lineiterator, 
@@ -174,5 +178,7 @@ def fastqWithoutQualityIterator(lineiterator,
         yield seq
     
         read+=1
-        hline = next(i)
-        
+        try:
+            hline = next(i)
+        except StopIteration:
+            return        

python/obitools3/parsers/tab.pyx

@@ -99,7 +99,10 @@ def tabIterator(lineiterator,
         
         read+=1
         
-        line = next(iterator)
+        try:
+            line = next(iterator)
+        except StopIteration:
+            return 
     
         
         

python/obitools3/version.py

@@ -1,5 +1,5 @@
 major = 3
 minor = 0
-serial= '1b24'
+serial= '1b25'
 
 version ="%d.%d.%s" % (major,minor,serial)