clean up and add web3

web3_python_toolkit/scripts/utils/strings.py

@@ -0,0 +1,40 @@
+# -*- encoding: utf-8 -*-
+# This class implements string methods used by the other classes.
+# author: steinkirch
+
+from pprint import PrettyPrinter
+
+from utils.os import log_error
+from utils.arithmetics import to_decimal
+
+
+def to_decimal_str(value) -> str:
+    """Format a reserve amount to a suitable string."""
+
+    return str(to_decimal(value))
+
+
+def to_wei_str(value, decimals=None) -> str:
+    """Parse an order string to wei value."""
+
+    decimals = decimals or 18
+    try:
+        return str(value)[:-decimals] + '_' + str(value)[-decimals:]
+    except ValueError as e:
+        log_error(f'Cannot convert to wei: {e}')
+
+
+def to_solution(value) -> str:
+    """Format decimal wei with an underscore for easier reading."""
+
+    return to_wei_str(to_decimal_str(value))
+
+
+def pprint(data, indent=None) -> None:
+    """Print dicts and data in a suitable format"""
+
+    print()
+    indent = indent or 4
+    pp = PrettyPrinter(indent=indent)
+    pp.pprint(data)
+    print()