fix na bug (#158)

* fix na bug

* remove new default

Author: mmaiers-nmdp

pyard/data_repository.py

@@ -402,7 +402,8 @@ def generate_mac_codes(db_connection: sqlite3.Connection, refresh_mac: bool):
         # Load the MAC file to a DataFrame
         mac_url = 'https://hml.nmdp.org/mac/files/numer.v3.zip'
         df_mac = pd.read_csv(mac_url, sep='\t', compression='zip',
-                             skiprows=3, names=['Code', 'Alleles'])
+                             skiprows=3, names=['Code', 'Alleles'],
+                             keep_default_na=False)
         # Create a dict from code to alleles
         mac = df_mac.set_index("Code")["Alleles"].to_dict()
         # Save the mac dict to db

tests/features/mac.feature

@@ -23,3 +23,4 @@ Feature: MAC (Multiple Allele Code)
       | A*01:AC+A*01:AB | G     | A*01:01:01G/A*01:02+A*01:01:01G/A*01:03:01G |
       | A*01:01+A*01:AB | G     | A*01:01:01G+A*01:01:01G/A*01:02             |
       | C*05:APUF       | lg    | X                                           |
+      | DRB1*13:NA      | lgx   | DRB1*13:01/DRB1*13:02/DRB1*13:06/DRB1*13:08/DRB1*13:09/DRB1*13:10  |