On 2026-06-12, Lawrence D’Oliveiro <[email protected]> wrote:
> So I looked at the example Gambas program at
><https://gambaswiki.org/wiki/doc/whatisgambas> and marvelled at its
> unnecessary complexity (UUOC, even). It’s like PHP with variable
> declarations!
>
> Here’s my version: excluding header comments and blank lines and
> shebang line, it’s about half the size.
>
> info = dict \
> (
> (entry[0][:-1], int(entry[-2]))
> for line in open("/proc/meminfo", "rt")
> for entry in (tuple(s.strip() for s in line.split(" ")),)
> if entry[-2] != ""
> )
> print("Used memory: %d Kb" % (info["MemTotal"] - info["MemFree"] -
> info["Buffers"] - info["Cached"] + info["SwapTotal"] - info["SwapFree"] -
> info["SwapCached"]))
Better:
with open('/proc/meminfo') as meminfo:
info = {
entry[0][:-1]: int(entry[1])
for line in meminfo
if (entry := line.split())
}
print('Used memory: %d kB' % (
info['MemTotal'] - info['MemFree'] - info['Buffers'] - info['Cached'] +
info['SwapTotal'] - info['SwapFree'] - info['SwapCached']
))
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