diff --git a/bashplotlib/histogram.py b/bashplotlib/histogram.py
index 6d16e35..bfff5b1 100644
--- a/bashplotlib/histogram.py
+++ b/bashplotlib/histogram.py
@@ -35,7 +35,7 @@ def read_numbers(numbers):
     """
     Read the input data in the most optimal way
     """
-    if isinstance(numbers, list):
+    if isiterable(numbers):
         for number in numbers:
             yield float(str(number).strip())
     else:
diff --git a/bashplotlib/utils/helpers.py b/bashplotlib/utils/helpers.py
index 8ab2c3f..bfffe46 100644
--- a/bashplotlib/utils/helpers.py
+++ b/bashplotlib/utils/helpers.py
@@ -7,6 +7,8 @@
 
 import sys
 
+isiterable = lambda x: hasattr(x, '__iter__') or hasattr(x, '__getitem__')
+
 bcolours = {
     "white":   '\033[97m',
     "aqua":    '\033[96m',