history export: include tx fee

closes #3504
2018-11-18 16:46:07 +01:00
parent 32af83b7ae
commit 5376d37c24
4 changed files with 37 additions and 6 deletions
--- a/electrum/util.py
+++ b/electrum/util.py
@@ -156,7 +156,7 @@ class Fiat(object):
        return 'Fiat(%s)'% self.__str__()

    def __str__(self):
-        if self.value.is_nan():
+        if self.value is None or self.value.is_nan():
            return _('No Data')
        else:
            return "{:.2f}".format(self.value) + ' ' + self.ccy