--- a/SMART/galaxy/WrappGetLetterDistribution.xml	Mon Apr 22 11:11:10 2013 -0400
+++ b/SMART/galaxy/WrappGetLetterDistribution.xml	Mon Apr 29 03:20:15 2013 -0400
@@ -1,5 +1,8 @@
-<tool id="getLetterDistribution1" name="Get Letter Distribution">
+<tool id="getLetterDistribution1" name="get letter distribution">
     <description>Calculate distribution for each nucleotide per position for all short reads</description>
+	<requirements>
+		<requirement type="set_environment">PYTHONPATH</requirement>
+	</requirements>
     <command interpreter="python">
 	    WrappGetLetterDistribution.py -i $inputFileName
 	#if $formatType.FormatInputFileName == 'fasta':
@@ -25,9 +28,9 @@
     </inputs>
         
     <outputs>
-               	<data name="ouputFileNameCSV" format="tabular" label="[getLetterDistribution] CSV File"/>
-               	<data name="ouputFileNamePNG1" format="png" label="[getLetterDistribution] PNG File 1"/>
-               	<data name="ouputFileNamePNG2" format="png" label="[getLetterDistribution] PNG File 2"/>
+               	<data name="ouputFileNameCSV" format="tabular" label="[get letter distribution] CSV file"/>
+               	<data name="ouputFileNamePNG1" format="png" label="[get letter distribution] PNG file 1"/>
+               	<data name="ouputFileNamePNG2" format="png" label="[get letter distribution] PNG file 2"/>
     </outputs>
     <tests>
     	<test>
@@ -38,8 +41,8 @@
     </tests>
 
 	<help>
-The script gets the nucleotide distribution of the input sequence list. It outputs two files. The first file shows the nucleotide distribution of the data. More precisely, a point (*x*, *y*) on the curve **A** shows that *y* sequences have *x*% of **A**.
+The script gets the nucleotide distribution of the input sequence list. It outputs two files. The first file shows the nucleotide distribution of the data. More precisely, a point (*x*, *y*) on the curve **A** shows that *y* sequences have *x* % of **A**.
   
-The second plot shows the average nucleotide distribution for each position of the read. You can use it to detect a bias in the first nucleotides, for instance. A point *x*, *y* on the curve **A** shows that at the position *x*, there are *y*% of **A**. A point (*x*, *y*) on the curve **#** tells you that *y*% of the sequences contain not less than *x* nucleotides. By definition, this latter line is a decreasing function. It usually explains why the tail of the other curves are sometimes erratic: there are few sequences.
+The second plot shows the average nucleotide distribution for each position of the read. You can use it to detect a bias in the first nucleotides, for instance. A point *x*, *y* on the curve **A** shows that at the position *x*, there are *y*% of **A**. A point (*x*, *y*) on the curve **#** tells you that *y* % of the sequences contain not less than *x* nucleotides. By definition, this latter line is a decreasing function. It usually explains why the tail of the other curves are sometimes erratic: there are few sequences.
 	</help>
 </tool>