Add --print-json and -1/--one-column options

freqtrade/configuration/arguments.py

@@ -34,7 +34,8 @@ ARGS_LIST_EXCHANGES = ["print_one_column", "list_exchanges_all"]
 
 ARGS_LIST_TIMEFRAMES = ["exchange", "print_one_column"]
 
-ARGS_LIST_PAIRS = ["exchange", "print_list", "base_currency", "quote_currency", "active_only"]
+ARGS_LIST_PAIRS = ["exchange", "print_list", "list_pairs_print_json", "print_one_column",
+                   "base_currency", "quote_currency", "active_only"]
 
 ARGS_CREATE_USERDIR = ["user_data_dir"]
 

freqtrade/configuration/cli_options.py

@@ -262,6 +262,12 @@ AVAILABLE_CLI_OPTIONS = {
              'printed in the tabular format.',
         action='store_true',
     ),
+    "list_pairs_print_json": Arg(
+        '--print-json',
+        help='Print list of pairs or market symbols in JSON format.',
+        action='store_true',
+        default=False,
+    ),
     "quote_currency": Arg(
         '--quote-currency',
         help='Select quote currency.',

freqtrade/utils.py

@@ -4,6 +4,7 @@ from pathlib import Path
 from typing import Any, Dict, List
 
 import arrow
+import rapidjson
 from tabulate import tabulate
 
 from freqtrade import OperationalException
@@ -156,6 +157,10 @@ def start_list_pairs(args: Dict[str, Any], pairs_only: bool = False) -> None:
                   (" and" if base_currency and quote_currency else "") +
                   (f" with {quote_currency} as quote currency" if quote_currency else "") +
                   (f": {', '.join(sorted(pairs.keys()))}" if len(pairs) else "") + ".")
+        elif args.get('print_one_column', False):
+            print('\n'.join(sorted(pairs.keys())))
+        elif args.get('list_pairs_print_json', False):
+            print(rapidjson.dumps(sorted(pairs.keys()), default=str))
         else:
             # print data as a table
             headers = ['Id', 'Symbol', 'Base', 'Quote', 'Active']