A little edit of strings and docstrings. Sorted imports ascendingly.

Added replacement of letter T that separates data and time in a timestamp.
So timestamps now are looking prettier.

piggybank/cli/put.py

@@ -5,10 +5,10 @@ from os.path import exists
 from sys import exit, stderr
 
 from piggybank import print_program_version
-from piggybank.piggybank import PiggyBank
 from piggybank.cli import EPILOGUE
 from piggybank.currencies import CURRENCIES, DEFAULT_CURRENCY, \
     BaseCurrencyError, print_supported_currencies
+from piggybank.piggybank import PiggyBank
 from piggybank.util import add_common_arguments_to_parser, \
     complement_array_of_coins
 
@@ -24,8 +24,8 @@ def main() -> None:
                         help="a piggy bank file name. Missing .pb extension"
                         "will be added")
     parser.add_argument("coins", type=int, nargs="+", metavar="COIN",
-                        help="a set of coins to add to a piggy bank. A new file"
-                        "will be created if it doesn't exist")
+                        help="a set of coins to add. A new file will be"
+                        "created if it doesn't exist")
 
     parser.add_argument("-c", "--currency", type=str, default=DEFAULT_CURRENCY,
                         help="set currency of a piggy bank. Not applicable to"

piggybank/cli/show.py

@@ -5,10 +5,10 @@ from os.path import exists
 from sys import exit, stderr
 
 from piggybank import print_program_version, PIGGYBANK_FILE_EXTENSION
-from piggybank.piggybank import PiggyBank
 from piggybank.cli import EPILOGUE
 from piggybank.currencies import CURRENCIES, DEFAULT_CURRENCY, \
     BaseCurrencyError, print_supported_currencies
+from piggybank.piggybank import PiggyBank
 from piggybank.util import add_common_arguments_to_parser
 
 __all__ = ["main"]
@@ -18,7 +18,10 @@ DEFAULT_COIN_CENTERING: int = 10
 
 def print_summary(piggybank: PiggyBank,
                   centering: int = DEFAULT_COIN_CENTERING) -> None:
-    """Print summarised info on a piggy bank."""
+    """Print summarised information on a piggy bank.
+    Prints a table with totals of how much coins of which face value are in a
+    piggy bank; A total sum converted to its currency for each face value and
+    overall total sum in a currency of a piggy bank."""
     def print_separator(left="┣", lmiddle="╋", rmiddle="╋", right="┫"):
         line = rmiddle.join('━' * centering
                             for _ in
@@ -56,14 +59,14 @@ def print_transactions(piggybank, centering=DEFAULT_COIN_CENTERING):
 
     cline = "┃".join([f'{l:^{centering}}'
                      for l in CURRENCIES[piggybank.currency]["names"]])
-#    cline_len = len(cline)
 
     print_separator()
     print(f"┃{'Timestamp':^21}┃ I/O ┃{cline}┃")
     print_separator("┣", "╋", "┫")
     for tr in piggybank.transactions:
         coin_line = "┃".join([f'{c:^{centering}}' for c in tr.coins])
-        print(f"┃ {tr.timestamp} ┃{tr.direction:^5}┃{coin_line}┃")
+        ts = tr.timestamp.replace("T", " ")
+        print(f"┃ {ts} ┃{tr.direction:^5}┃{coin_line}┃")
     print_separator("┗", "┻", "┛")
 
 
@@ -83,7 +86,7 @@ def main():
     parser.add_argument("-m", "--merge", action="append",
                         type=str, metavar="FILE",
                         help="merge multiple files to show how much do you"
-                        "have across them. They all should have same currency")
+                        "have across them. They all should be of same currency")
 
     add_common_arguments_to_parser(parser, include_reverse_flag=False)
 

piggybank/cli/take.py

@@ -4,10 +4,10 @@ from argparse import ArgumentParser
 from sys import exit, stderr
 
 from piggybank import print_program_version
-from piggybank.piggybank import PiggyBank
 from piggybank.cli import EPILOGUE
 from piggybank.currencies import CURRENCIES, DEFAULT_CURRENCY, \
     BaseCurrencyError, print_supported_currencies
+from piggybank.piggybank import PiggyBank
 from piggybank.transaction import TYPE_OUTCOME
 from piggybank.util import add_common_arguments_to_parser, \
     complement_array_of_coins
@@ -24,8 +24,8 @@ def main():
                         help="a coin box file name. Missing .cb extension will"
                         "be added")
     parser.add_argument("coins", type=int, nargs="+", metavar="COIN",
-                        help="add a set of coins to a coin box. A new file"
-                        "will be created if it doesn't exist")
+                        help="add a set of coins. A new file will be created"
+                        "if it doesn't exist")
 
     add_common_arguments_to_parser(parser)