Eclipse has that \"+/-\" on the left to expand and collapse blocks of code.
I\'ve got tens of thousands of lines to go through and would really like to just collapse
I had the same problem and found out Folding can be enabled or disabled, and in my case got disabled somehow.
To solve it, simply right click on the line numbers/breakpoint section (vertical bar in the left of the editor), then under the 'Folding' section chose 'Enable folding'.
ctrlshift/ should be working fine after.
Collapse all : CTRL + SHIFT + /
Expand all code blocks : CTRL + *
If you are using PyDev in Eclipse, its Ctrl0 and Ctrl9 for collapse all and uncollapse all respectively. Ctrl- and Ctrl= to collapse individual methods when your cursor is on the line of the method declaration.