added optional GUI script

pyproject.toml

@@ -30,13 +30,21 @@ test = [
     "black",
     "flake8",
     "flake8-comprehensions",
-    "pytest >=4.0.0",
+    "pytest >= 4.0.0",
     "pytest-cov",
     "pytest-mock",
 ]
 dev = [
     "keyring",
 ]
+gui = [
+    "Gooey >= 1.0.3",
+    "pyinstaller >= 3.5"
+]
+
+[tool.flit.scripts]
+loggercli = "sartorius_logger:cli"
+SartoriusLogger = "sartorius_logger:gui"
 
 [tool.black]
 line-length = 79

sartorius_logger/__init__.py

@@ -16,6 +16,13 @@ from tqdm import tqdm
 from .datalogger import DataLogger, NullLogger
 from .parsers import parse_cli_arguments
 
+try:
+    from gooey import Gooey
+except ImportError as exc:
+    def Gooey(*args, **kargs):
+        msg = "The graphilcal user interface must be installed separately"
+        raise NotImplementedError(msg)
+
 
 SCALE_INFO_LABELS = {
     sartoriusb.CMD_INFO_TYPE: "Scale Model",
@@ -173,3 +180,12 @@ def cli():
         settings, progress_bar=tqdm, data_logger=DataLogger(log_file_path)
     )
     export_as_excel(result)
+
+@Gooey(program_name="SartoriusLogger")
+def gui():
+    settings = parse_cli_arguments()
+    log_file_path = _get_log_file_path(settings)
+    result = measure_series(
+        settings, progress_bar=tqdm, data_logger=DataLogger(log_file_path)
+    )
+    export_as_excel(result)

sartorius_logger/parsers.py

@@ -52,6 +52,25 @@ def parse_cli_arguments():
     return _normalize_cli_arguments(raw_arguments)
 
 
+def parse_gui_arguments():
+    from gooey import GooeyParser
+    """ parses command line interface arguments """
+    parser = argparse.GooeyParser(
+        description="Make time series measurements with a Sartorius scale.",
+        epilog=(
+            "Times can be specified as  10s, 10m, or 10h"
+            "for seconds, minutes or hours respectively."
+            "A relative directory path starts at the Desktop."
+        ),
+    )
+    parser.add_argument("port", nargs="?", default="COM4", metavar="COMPORT", help="Serial Port that connects the Scale, defaults to 'COM4'")
+    parser.add_argument("-d", "--duration", nargs="?", default="30m", help="Measurement duration, e.g. 10s, 30m, 2h")
+    parser.add_argument("-i", "--interval", nargs="?", default="10s", help="Measurement interval, e.g. 5s, 1m, 1h")
+    parser.add_argument("-o", "--output", nargs="?", metavar="DIRECTORY", widget='DirChooser', help="Select Output Directory, defaults to 'Desktop'")
+    raw_arguments = parser.parse_args()
+    return _normalize_cli_arguments(raw_arguments)
+
+
 # helper functions