tStart adding some utility functions. - obelisk - Electrum server using libbitcoin as its backend
 (HTM) git clone https://git.parazyd.org/obelisk
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       ---
 (DIR) commit efdd930fa0b7808d663da689d4f0f08824f78c36
 (DIR) parent 2d336652b6b4fa2c55e32d5afca2b9b4f55fc5fa
 (HTM) Author: parazyd <parazyd@dyne.org>
       Date:   Wed,  7 Apr 2021 17:20:43 +0200
       
       Start adding some utility functions.
       
       Diffstat:
         A electrumobelisk/util.py             |      27 +++++++++++++++++++++++++++
       
       1 file changed, 27 insertions(+), 0 deletions(-)
       ---
 (DIR) diff --git a/electrumobelisk/util.py b/electrumobelisk/util.py
       t@@ -0,0 +1,27 @@
       +#!/usr/bin/env python3
       +# Copyright (C) 2020-2021 Ivan J. <parazyd@dyne.org>
       +#
       +# This file is part of obelisk
       +#
       +# This program is free software: you can redistribute it and/or modify
       +# it under the terms of the GNU Affero General Public License version 3
       +# as published by the Free Software Foundation.
       +#
       +# This program is distributed in the hope that it will be useful,
       +# but WITHOUT ANY WARRANTY; without even the implied warranty of
       +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
       +# GNU Affero General Public License for more details.
       +#
       +# You should have received a copy of the GNU Affero General Public License
       +# along with this program.  If not, see <http://www.gnu.org/licenses/>.
       +"""Utility functions"""
       +
       +
       +def is_integer(val):
       +    return isinstance(val, int)
       +
       +
       +def is_non_negative_integer(val):
       +    if is_integer(val):
       +        return val >= 0
       +    return False