xlsxwriter as optional dependency

build_results.py

@@ -21,8 +21,6 @@ import string
 import os
 import re
 
-import xlsxwriter
-
 import sys
 prg_path = os.path.dirname(os.path.realpath(__file__))
 sys.path.insert(0, os.path.join(prg_path, "lib"))
@@ -499,6 +497,13 @@ def create_xls_document(args, headers, filtered_records, nb_records, nb_inds, ce
     :param cells_gq: cells for third sheet (genotype quality)
     :param max_col_len: max content length for each column
     """
+
+    try:
+        import xlsxwriter
+    except ImportError:
+        print("Excel file not built: xslxwriter python module not installed")
+        return False
+
     with xlsxwriter.Workbook(args.output + ".xslx") as workbook:
 
         #################################
@@ -553,6 +558,16 @@ def create_xls_document(args, headers, filtered_records, nb_records, nb_inds, ce
 
 
 def create_tsv_file(filename: str, headers: list, cells: dict, nb_tools: int, nb_per_tool: int, records_range: ()):
+    """
+    Create tabulated separated values file
+    :param filename: filename of the file
+    :param headers: headers of each sheet
+    :param cells: cells of the table to save
+    :param nb_tools: number of tools
+    :param nb_per_tool: number per tools
+    :param records_range: range of records to treat {tuple(2)}
+    :return:
+    """
     # Init rows:
     head = ["", headers[0]]
     top_headers = {}
@@ -590,8 +605,6 @@ def create_tsv_file(filename: str, headers: list, cells: dict, nb_tools: int, nb
         tsv_file.write(tsv)
 
 
-
-# noinspection PyUnresolvedReferences
 def main():
     # parse the command line args
     args = get_args()