converted experiment configuration files from .pcx to .json (#59)

Author: alustig3

gui/GUI_main.py

@@ -4,6 +4,7 @@
 import traceback
 import logging
 
+from pathlib import Path
 from serial.tools import list_ports
 from pyqtgraph.Qt import QtGui, QtCore, QtWidgets
 
@@ -116,6 +117,7 @@ def __init__(self,app):
         shortcuts_action.setIcon(QtGui.QIcon("gui/icons/keyboard.svg"))
         help_menu.addAction(shortcuts_action)
 
+        self.pcx2json()
         self.show()
 
     def go_to_data(self):
@@ -138,13 +140,19 @@ def get_task_file_list(self):
         subdir_1/subdir_2/task_file_name.py'''
         task_files = []
         # this function gets called every second. Normally we would use get_setting("folder","tasks")
-        # but there no need to constantly be rereading the user_settings.json file that isn't changing
+        # but there is no need to constantly be rereading the user_settings.json file that isn't changing
         # so we use this self.task_directory variable that is only updated when a new user settting is saved
         for (dirpath, dirnames, filenames) in os.walk(self.task_directory):
             task_files += [os.path.join(dirpath, file).split(self.task_directory)[1][1:-3]
                            for file in filenames if file.endswith('.py')]
         return task_files
 
+    def pcx2json(self):
+        """Converts legacy .pcx files to .json files"""
+        exp_dir = Path(dirs['experiments'])
+        for f in exp_dir.glob('*.pcx'):
+            f.rename(f.with_suffix('.json'))
+
     def refresh(self):
         '''Called regularly when framework not running.'''
         # Scan task folder.
@@ -153,7 +161,7 @@ def refresh(self):
         if self.available_tasks_changed:
             self.available_tasks = tasks
         # Scan experiments folder.
-        experiments = [t.split('.')[0] for t in os.listdir(dirs['experiments']) if t[-4:] == '.pcx']
+        experiments = [exp_file.stem for exp_file in Path(dirs['experiments']).glob('*.json')]
         self.available_experiments_changed = experiments != self.available_experiments
         if self.available_experiments_changed:
             self.available_experiments = experiments

gui/configure_experiment_tab.py

@@ -185,7 +185,7 @@ def new_experiment(self, dialog=True):
 
     def delete_experiment(self):
         '''Delete an experiment file after dialog to confirm deletion.'''
-        exp_path = os.path.join(dirs['experiments'], self.name_text.text()+'.pcx')
+        exp_path = os.path.join(dirs['experiments'], self.name_text.text()+'.json')
         if os.path.exists(exp_path):
             reply = QtWidgets.QMessageBox.question(
                 self,
@@ -215,10 +215,10 @@ def save_experiment(self, from_dialog=False):
             setup = str(self.subjects_table.cellWidget(s,1).currentText())
             run = self.subjects_table.cellWidget(s,0).isChecked()
             d[subject] =  {'setup':setup,'run':run} # add dict subject entry
-        '''Store the current state of the experiment tab as a JSON object
-        saved in the experiments folder as .pcx file.'''
+        # Store the current state of the experiment tab as a JSON object
+        # saved in the experiments folder as .json file.
         experiment = self.experiment_dict()
-        file_name = self.name_text.text()+'.pcx'
+        file_name = self.name_text.text()+'.json'
         exp_path = os.path.join(dirs['experiments'], file_name)
         if os.path.exists(exp_path) and (exp_path != self.saved_exp_path):
             reply = QtWidgets.QMessageBox.question(
@@ -229,7 +229,7 @@ def save_experiment(self, from_dialog=False):
             )
             if reply == QtWidgets.QMessageBox.StandardButton.No:
                 return False
-        with open(exp_path,'w') as exp_file:
+        with open(exp_path,'w', encoding='utf-8') as exp_file:
             exp_file.write(json.dumps(experiment, sort_keys=True, indent=4))
         if not from_dialog:
             cbox_set_item(self.experiment_select, experiment['name'], insert=True)
@@ -239,9 +239,9 @@ def save_experiment(self, from_dialog=False):
         return True
 
     def load_experiment(self, experiment_name):
-        '''Load experiment  .pcx file and set fields of experiment tab.'''
-        exp_path = os.path.join(dirs['experiments'], experiment_name +'.pcx')
-        with open(exp_path,'r') as exp_file:
+        '''Load experiment  .json file and set fields of experiment tab.'''
+        exp_path = os.path.join(dirs['experiments'], experiment_name +'.json')
+        with open(exp_path,'r', encoding='utf-8') as exp_file:
             experiment = json.loads(exp_file.read())
         self.name_text.setText(experiment['name'])
         if experiment['task'] in self.GUI_main.available_tasks:
@@ -335,7 +335,7 @@ def save_dialog(self):
         cancel is selected, True otherwise.'''
         if self.saved_exp_dict == self.experiment_dict():
             return True # Experiment has not been edited.
-        exp_path = os.path.join(dirs['experiments'], self.name_text.text()+'.pcx')
+        exp_path = os.path.join(dirs['experiments'], self.name_text.text()+'.json')
         dialog_text = None
         if not os.path.exists(exp_path):
             dialog_text = 'Experiment not saved, save experiment?'