From 55dae2b5436a6c655aeece136998f0cb5abf043e Mon Sep 17 00:00:00 2001
From: Yang Wang <250801860@qq.com>
Date: Fri, 17 Mar 2017 10:47:20 +0800
Subject: [PATCH 1/2] Add method del_column.

Add an method del_column to delete a column to the table.
---
 prettytable/prettytable.py | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/prettytable/prettytable.py b/prettytable/prettytable.py
index 1f9e3a1..4a37e03 100644
--- a/prettytable/prettytable.py
+++ b/prettytable/prettytable.py
@@ -957,7 +957,19 @@ def del_row(self, row_index):
         if row_index > len(self._rows) - 1:
             raise Exception("Cant delete row at index %d, table only has %d rows!" % (row_index, len(self._rows)))
         del self._rows[row_index]
-
+        
+    def del_column(self, column_index):
+        """Delete a column to the table
+        
+        Arguments:
+        column_index - The index of the column you want to delete. Indexing starts at 0."""
+        
+        if column_index > len(self._field_names) - 1:
+            raise Exception("Cant delete column at index %d, table only has %d columns!" % (column_index, len(self._field_names)))
+        else:
+            self._field_names.pop(column_index)
+            self._rows = [row[:column_index] + row[column_index+1:] for row in self._rows]
+            
     def add_column(self, fieldname, column, align="c", valign="t"):
 
         """Add a column to the table.

From e0d162f949a62a4a1f6c81cfe5e6855f902715ca Mon Sep 17 00:00:00 2001
From: Yang Wang <250801860@qq.com>
Date: Fri, 17 Mar 2017 10:47:20 +0800
Subject: [PATCH 2/2] Add method del_column.

Add an method del_column to delete a column to the table.
---
 prettytable/prettytable.py | 14 +++++++++++++-
 tests/test_prettytable.py  | 10 ++++++++++
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/prettytable/prettytable.py b/prettytable/prettytable.py
index 1f9e3a1..4a37e03 100644
--- a/prettytable/prettytable.py
+++ b/prettytable/prettytable.py
@@ -957,7 +957,19 @@ def del_row(self, row_index):
         if row_index > len(self._rows) - 1:
             raise Exception("Cant delete row at index %d, table only has %d rows!" % (row_index, len(self._rows)))
         del self._rows[row_index]
-
+        
+    def del_column(self, column_index):
+        """Delete a column to the table
+        
+        Arguments:
+        column_index - The index of the column you want to delete. Indexing starts at 0."""
+        
+        if column_index > len(self._field_names) - 1:
+            raise Exception("Cant delete column at index %d, table only has %d columns!" % (column_index, len(self._field_names)))
+        else:
+            self._field_names.pop(column_index)
+            self._rows = [row[:column_index] + row[column_index+1:] for row in self._rows]
+            
     def add_column(self, fieldname, column, align="c", valign="t"):
 
         """Add a column to the table.
diff --git a/tests/test_prettytable.py b/tests/test_prettytable.py
index 6d8c573..65b08f4 100644
--- a/tests/test_prettytable.py
+++ b/tests/test_prettytable.py
@@ -343,6 +343,16 @@ def setUp(self):
         BasicTests.setUp(self)
         self.x.int_format = "04"
 
+class DelColumnTests(CityDataTest):
+    """Test del_column function"""
+    def testDelColumn(self):
+        self.x.del_column(3)
+        self.assertTrue(["City name", "Area", "Population"] == self.x.field_names)
+        string = self.x.get_string()
+        assert "600.5" not in string
+        assert "1146.4" not in string
+        assert "112" in string
+        assert "1714.7" not in string
 
 class FloatFormatBasicTests(BasicTests):
     """Run the basic tests after setting a float format string"""