William,
No, I did not know about writing to the tmpfs directory. That's a great
idea. I don't know how to do it so will search for info on it.
I decided that I don't need to write these particular files but can
simply save the data to RAM. However, I will need to write a log file to
a USB memory stick, so the tmpfs directory should fit the bill exactly
to temporarily save the data before writing to USB.
Thanks very much for the suggestion.
John
johnbakeree.blogspot.com
On 4/8/2016 1:38 PM, William Hermans wrote:
/Now after all that I've decided not to write anything to the
eMMC, fearing that I'll cause some hiccup with the writes./
/John/
Eh ? What do you mean ? You do realize that you can create a tmpfs
directory, that is located in memory, where you could then create
files that are also placed in memory ?
On Thu, Apr 7, 2016 at 4:59 PM, John Baker
<bakerengineerin...@gmail.com <mailto:bakerengineerin...@gmail.com>>
wrote:
Now after all that I've decided not to write anything to the eMMC,
fearing that I'll cause some hiccup with the writes.
John
johnbakeree.blogspot.com <http://johnbakeree.blogspot.com>
On Wednesday, April 6, 2016 at 11:24:18 AM UTC-7, John Baker wrote:
Gosh, how did I miss that, that the mode is a string. Well it
had to be
something simple like that. Quoting the w and r fixed the
problem. Very
embarrassing.
:-[
Thanks,
John
On 4/5/2016 7:21 PM, Dennis Lee Bieber wrote:
> On Tue, 5 Apr 2016 13:43:47 -0700 (PDT), John Baker
> <bakerengi...@gmail.com> declaimed the
> following:
>
>> I want to store a little data on the eMMC from my Python
code. My program
>> is not getting errors when I try to write a very short data
file but it
>> doesn't actually seem to write it as I cannot read it back.
I am using
>> f = open('MyFile.txt', w)
>>
> First problem -- the mode is a string...
>
> f = open("MyFile.txt", "w")
>
>> or
>> f = open('/home/debian/Desktop/MyFile.txt', w)
>>
>> or
>> f = open('MyFile.txt', r)
>>
>> or
>> f = open('/home/debian/Desktop/MyFile.txt', r)
>>
>> to open the file and am not getting any errors but Python
is not finding
>> the file and I cannot find the file with a search from
WinSCP.
>>
> Did you ever write anything to the file, and did you
close the file?
>
> f.write("Some junk\n")
> f.close()
>
>
> The first open should create the file in whatever
your current working
> directory is. Without connecting my BBB I can't confirm if
the second is a
> valid path.
>
> And last -- how are you running it? SSH to a command
line?
>
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