1 files changed, 30 insertions, 0 deletions
diff --git a/97suifangqa/apps/utils/tools.py b/97suifangqa/apps/utils/tools.py
new file mode 100644
index 0000000..33cf012
--- /dev/null
+++ b/97suifangqa/apps/utils/tools.py
@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+#
+# generic tools for apps
+#
+
+
+def format_float(number):                                       # {{{
+    """
+    format the display style of a float number
+    """
+    threshold_min = 0.001
+    threshold_max = 9999.9
+    fix_fmt = '{:,.1f}'    # comma as a thousands separator
+    exp_fmt = '{:.1e}'
+    #
+    if isinstance(number, int) or isinstance(number, float):
+        #return type(number)
+        pass
+    else:
+        return False
+    #
+    if (number > threshold_max) or (number < threshold_min):
+        str = exp_fmt.format(number)
+    else:
+        str = fix_fmt.format(number)
+    #
+    return str
+# }}}
+
+