Hi,

I have been automating the creation of positions using python scripts. Something relatively simple like p001, p002, etc.

When I examine the positions using the python commands

from Midas import positions

pnames = positions.keys()

at first things appear as I would expect, but later the sequence changes relative to the index, why is that?

for example, using this to print the positions

pnames = positions.keys()

i=0

for pname in pnames:

print i,pnames[i]

i=i+1

I get these results:

savepos p000

savepos p001

0 p000

1 p001

(as expected)

savepos p002

0 p000

1 p001

2 p002

(as expected)

savepos p003

0 p000

1 p001

2 p002

3 p003

(as expected)

savepos p004

0 p004

1 p000

2 p001

3 p002

4 p003

(not as expected)

savepos p005

0 p004

1 p005

2 p000

3 p001

4 p002

5 p003

(not as expected)

I would expect pnames[0] to correspond to the first position created, pnames[1] to the second posiiton created, etc., assuming no ~savepos used.

Want to create a situation where the default names would be pxxx, but could later be altered to more meaningful names but maintain the order of creation, or getting a session file from someone I would use their position names and tack on my default names to the end of the position list.

Matthew Dougherty
National Center for Macromolecular Imaging
Baylor College of Medicine
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