just starting to create functions

main.py

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+import rov
+import csv
+from pathlib import *
+
+manrs_asns = []
+manrs_csv_filename = "manrs.csv"
+
+def read_manrs_participant_file(filename):
+    global manrs_asns
+    read_manrs_participant = Path.cwd() / filename
+    with open(read_manrs_participant) as csvfile:
+        fi_reader = csv.DictReader(csvfile, delimiter=',', quotechar='"')
+        for row in fi_reader:
+            for asn in row['ASNs'].split(','):
+                asn = asn.strip()
+                manrs_asns.append(asn)
+
+
+def is_manrs_participant(asn):
+    global manrs_asns
+    if len(manrs_asns) == 0:
+        read_manrs_participant_file(manrs_csv_filename)
+    if asn.strip() in manrs_asns:
+        return True
+    else:
+        return False
+
+
+# This is a sample Python script.
+
+# Press ⌃R to execute it or replace it with your code.
+# Press Double ⇧ to search everywhere for classes, files, tool windows, actions, and settings.
+
+
+def print_hi(name):
+    # Use a breakpoint in the code line below to debug your script.
+    print(f'Hi, {name}')  # Press ⌘F8 to toggle the breakpoint.
+
+
+# Press the green button in the gutter to run the script.
+if __name__ == '__main__':
+    print(f"is ASN 123 {is_manrs_participant('123')}")
+    print_hi('PyCharm')
+
+# See PyCharm help at https://www.jetbrains.com/help/pycharm/