fix bug in index-fastq for python3

setup.py

@@ -1,6 +1,6 @@
 from setuptools import setup
 
-snaptools_version = '1.4.6'
+snaptools_version = '1.4.7'
 
 setup(
       name='snaptools',

snaptools.egg-info/PKG-INFO

@@ -1,6 +1,6 @@
 Metadata-Version: 1.2
 Name: snaptools
-Version: 1.4.6
+Version: 1.4.7
 Summary: A module for working with snap files in Python
 Home-page: https://github.com/r3fang/SnapTools.git
 Author: Rongxin Fang

snaptools/__init__.py

@@ -1 +1 @@
-__version__ = '1.4.6'
+__version__ = '1.4.7'

snaptools/dex_fastq.py

@@ -94,26 +94,42 @@ def dex_fastq(input_fastq,
 
     while True:
         cur_r1_name = fr1.readline().strip()[1:]
+        if type(cur_r1_name) is bytes:
+            cur_r1_name = cur_r1_name.decode();
         if cur_r1_name == "": break        
         cur_r1_read = fr1.readline().strip()
         cur_r1_plus = fr1.readline().strip()
         cur_r1_qual = fr1.readline().strip()
+        if type(cur_r1_read) is bytes:
+            cur_r1_read = cur_r1_read.decode();
+        if type(cur_r1_qual) is bytes:
+            cur_r1_qual = cur_r1_qual.decode();
+        if type(cur_r1_plus) is bytes:
+            cur_r1_plus = cur_r1_plus.decode();
 
         cur_idex_list = []
         for fix in index_files:
             cur_name = fix.readline().strip()[1:]
             cur_read = fix.readline().strip()
             cur_plus = fix.readline().strip()
             cur_qual = fix.readline().strip()
+            if type(cur_name) is bytes:
+                cur_name = cur_name.decode();
+            if type(cur_read) is bytes:
+                cur_read = cur_read.decode();
+            if type(cur_plus) is bytes:
+                cur_plus = cur_plus.decode();
+            if type(cur_qual) is bytes:
+                cur_qual = cur_qual.decode();
             cur_idex_list.append(cur_read)
+
         cur_barcode = "".join(cur_idex_list)
 
         if not (cur_name.split()[0] == cur_r1_name.split()[0]): sys.exit("read name does not match")        
-        fout.write('@' + cur_barcode + ':' + cur_r1_name+"\n")
-        fout.write(cur_r1_read+"\n")
-        fout.write("+\n")
-        fout.write(cur_r1_qual+"\n")                   
-
+        fout.write(('@' + cur_barcode + ':' + cur_r1_name+"\n").encode('utf-8'))
+        fout.write((cur_r1_read+"\n").encode('utf-8'))
+        fout.write(("+\n").encode('utf-8'))
+        fout.write((cur_r1_qual+"\n").encode('utf-8'))                   
     fout.close()
     fr1.close()
     for fix in index_files: