Fix for autosized columns. NEW Table Demos - CSV & Panda

Demo_Table_CSV.py

@@ -0,0 +1,46 @@
+import csv
+import PySimpleGUI as sg
+
+def table_example():
+    filename = sg.PopupGetFile('filename to open', no_window=True, file_types=(("CSV Files","*.csv"),))
+    # --- populate table with file contents --- #
+    if filename == '':
+        exit(69)
+    data = []
+    header_list = []
+    button = sg.PopupYesNo('Does this file have column names already?')
+    if filename is not None:
+        with open(filename, "r") as infile:
+            reader = csv.reader(infile)
+            if button == 'Yes':
+                header_list = next(reader)
+            try:
+                data = list(reader)  # read everything else into a list of rows
+                if button == 'No':
+                    header_list = ['column' + str(x) for x in range(len(data[0]))]
+            except:
+                sg.PopupError('Error reading file')
+                exit(69)
+    sg.SetOptions(element_padding=(0, 0))
+
+    col_layout = [[sg.Table(values=data, headings=header_list, max_col_width=25,
+                            auto_size_columns=True, justification='right', size=(None, len(data)))]]
+
+    canvas_size = (13*10*len(header_list), 600)      # estimate canvas size - 13 pixels per char * 10 char per column * num columns
+    layout = [[sg.Column(col_layout, size=canvas_size, scrollable=True)],]
+
+    form = sg.FlexForm('Table', grab_anywhere=False)
+    b, v = form.LayoutAndRead(layout)
+
+    exit(69)
+
+table_example()
+
+
+
+
+
+
+
+
+

Demo_Table_Pandas.py

@@ -1,40 +1,38 @@
 import pandas as pd
 import PySimpleGUI as sg
 
-"""
-
-    Display a CSV file using Table Element and Pandas
-    Thank you to     for writing this demo
-
-"""
-
-
 def table_example():
+    sg.SetOptions(auto_size_buttons=True)
     filename = sg.PopupGetFile('filename to open', no_window=True, file_types=(("CSV Files", "*.csv"),))
     # --- populate table with file contents --- #
+    if filename == '':
+        exit(69)
     data = []
     header_list = []
+    button = sg.PopupYesNo('Does this file have column names already?')
     if filename is not None:
         try:
-            df = pd.read_csv(filename, sep=',', engine='python')  # read everything else into a list of rows
-            header_list = df.columns.tolist()
-            data = df.values.tolist()
-            # print(data)
+            df = pd.read_csv(filename, sep=',', engine='python', header=None)  # Header=None means you directly pass the columns names to the dataframe
+            data = df.values.tolist()               # read everything else into a list of rows
+            if button == 'Yes':                     # Press if you named your columns in the csv
+                header_list = df.iloc[0].tolist()   # Uses the first row (which should be column names) as columns names
+                data = df[1:].values.tolist()       # Drops the first row in the table (otherwise the header names and the first row will be the same)
+            elif button == 'No':                    # Press if you didn't name the columns in the csv
+                header_list = ['column' + str(x) for x in range(len(data[0]))]  # Creates columns names for each column ('column0', 'column1', etc)
         except:
             sg.PopupError('Error reading file')
             exit(69)
+    # sg.SetOptions(element_padding=(0, 0))
 
-    sg.SetOptions(element_padding=(0, 0))
+    col_layout = [[sg.Table(values=data, headings=header_list, display_row_numbers=True,
+                            auto_size_columns=False, size=(None, len(data)))]]
 
-    col_layout = [[sg.Table(values=data, headings=header_list, max_col_width=20,
-                            auto_size_columns=True, justification='right', size=(None, len(data)))]]
-
-    layout = [[sg.Column(col_layout, size=(1200, 600), scrollable=True)]]
+    canvas_size = (13*10*len(header_list), 600)      # estimate canvas size - 13 pixels per char * 10 per column * num columns
+    layout = [[sg.Column(col_layout, size=canvas_size, scrollable=True)]]
 
     form = sg.FlexForm('Table', grab_anywhere=False)
     b, v = form.LayoutAndRead(layout)
 
     exit(69)
 
-
 table_example()

PySimpleGUI.py

@@ -2180,6 +2180,7 @@ def ReadFormButton(button_text, image_filename=None, image_size=(None, None),ima
 
 ReadButton = ReadFormButton
 
+
 # -------------------------  Realtime BUTTON Element lazy function  ------------------------- #
 def RealtimeButton(button_text, image_filename=None, image_size=(None, None),image_subsample=None,border_width=None,scale=(None, None), size=(None, None), auto_size_button=None, button_color=None, font=None, bind_return_key=False, focus=False, pad=None, key=None):
     return Button(BUTTON_TYPE_REALTIME, image_filename=image_filename, image_size=image_size, image_subsample=image_subsample, border_width=border_width, button_text=button_text, scale=scale, size=size, auto_size_button=auto_size_button, button_color=button_color, font=font, bind_return_key=bind_return_key, focus=focus, pad=pad, key=key)
@@ -2956,7 +2957,7 @@ def PackFormIntoFrame(form, containing_frame, toplevel_form):
                 for i, heading in enumerate(element.ColumnHeadings):
                     treeview.heading(heading, text=heading)
                     if element.AutoSizeColumns:
-                        width = column_widths[i]
+                        width = max(column_widths[i], len(heading))
                     else:
                         try:
                             width = element.ColumnWidths[i]