diff --git a/python/obitools3/parsers/fastq.pyx b/python/obitools3/parsers/fastq.pyx
index 0e44cf8..d57be75 100644
--- a/python/obitools3/parsers/fastq.pyx
+++ b/python/obitools3/parsers/fastq.pyx
@@ -8,6 +8,8 @@ Created on 30 mars 2016
 
 
 
+
+
 def fastqIterator(lineiterator, int buffersize=100000000):
     cdef LineBuffer lb
     cdef str        ident
@@ -38,4 +40,3 @@ def fastqIterator(lineiterator, int buffersize=100000000):
               }
         
         
-        
\ No newline at end of file
diff --git a/python/obitools3/utils.pyx b/python/obitools3/utils.pyx
index 793e7f1..76c2493 100644
--- a/python/obitools3/utils.pyx
+++ b/python/obitools3/utils.pyx
@@ -1,7 +1,5 @@
 #cython: language_level=3
 
-import sys
-import io
 
 cdef bytes str2bytes(str string):
     """