get country and mcc relation

opencellid_parsing/country_code_conversion/xxx.parse_mcc_mnc_table.py

@@ -0,0 +1,43 @@
+#!/usr/bin/python
+
+
+# go to https://www.mcc-mnc.com/
+# copy whole table without headline to a txt file 
+# run this to parse
+
+
+import pickle
+
+with open("mcc_mnc_table.txt", "r") as f:
+    lines = f.readlines()
+
+country_to_code = {}
+code_to_country = {}
+for line in lines:
+    tmp = list(filter(None, line.rstrip().split(' ')))
+    country = tmp[2]
+    mcc = int(tmp[0]) if not tmp[0] == 'n/a' else float('nan')
+    mnc = int(tmp[1]) if not tmp[1] == 'n/a' else float('nan')
+    provider = "unknown"
+    for idx in range(3, len(tmp)):
+        try:
+            int(idx)
+            break
+        except BaseException:
+            continue
+    provider = " ".join(tmp[(idx+1):])
+
+    if country not in country_to_code:
+        country_to_code[country] = []
+    country_to_code[country].append((mcc, mnc, provider))
+
+    key = "{}_{}".format(mcc, mnc)
+    if key not in code_to_country:
+        code_to_country[key] = (country, provider)
+    else:
+        print("conflict??")
+        print(key, country, provider)
+        print(code_to_country[key])
+
+pickle.dump(country_to_code, open("country_to_code.pickle", "wb"))
+pickle.dump(code_to_country, open("code_to_country.pickle", "wb"))