ANN: Python Meeting Düsseldorf - 12.06.2019
[This announcement is in German since it targets a local user group meeting in Düsseldorf, Germany] ANKÜNDIGUNG Python Meeting Düsseldorf http://pyddf.de/ Ein Treffen von Python Enthusiasten und Interessierten in ungezwungener Atmosphäre. Mittwoch, 12.06.2019, 18:00 Uhr Raum 1, 2.OG im Bürgerhaus Stadtteilzentrum Bilk Düsseldorfer Arcaden, Bachstr. 145, 40217 Düsseldorf Diese Nachricht ist auch online verfügbar: https://www.egenix.com/company/news/Python-Meeting-Duesseldorf-2019-06-12 NEUIGKEITEN * Bereits angemeldete Vorträge: Detlef Lannert "Data classes in Python 3.7" Marc-Andre Lemburg "Unfacify – Gesichtserkennung mit Python" Charlie Clark "Do you love your database enough?" Christian Liguda "Using Python in an e-mail based reporting workflow" Weitere Vorträge können gerne noch angemeldet werden: i...@pyddf.de * Startzeit und Ort: Wir treffen uns um 18:00 Uhr im Bürgerhaus in den Düsseldorfer Arcaden. Das Bürgerhaus teilt sich den Eingang mit dem Schwimmbad und befindet sich an der Seite der Tiefgarageneinfahrt der Düsseldorfer Arcaden. Über dem Eingang steht ein großes "Schwimm' in Bilk" Logo. Hinter der Tür direkt links zu den zwei Aufzügen, dann in den 2. Stock hochfahren. Der Eingang zum Raum 1 liegt direkt links, wenn man aus dem Aufzug kommt. Google Street View: http://bit.ly/11sCfiw EINLEITUNG Das Python Meeting Düsseldorf ist eine regelmäßige Veranstaltung in Düsseldorf, die sich an Python Begeisterte aus der Region wendet: * http://pyddf.de/ Einen guten Überblick über die Vorträge bietet unser YouTube-Kanal, auf dem wir die Vorträge nach den Meetings veröffentlichen: * http://www.youtube.com/pyddf/ Veranstaltet wird das Meeting von der eGenix.com GmbH, Langenfeld, in Zusammenarbeit mit Clark Consulting & Research, Düsseldorf: * http://www.egenix.com/ * http://www.clark-consulting.eu/ PROGRAMM Das Python Meeting Düsseldorf nutzt eine Mischung aus (Lightning) Talks und offener Diskussion. Vorträge können vorher angemeldet werden, oder auch spontan während des Treffens eingebracht werden. Ein Beamer mit XGA Auflösung steht zur Verfügung. (Lightning) Talk Anmeldung bitte formlos per EMail an i...@pyddf.de KOSTENBETEILIGUNG Das Python Meeting Düsseldorf wird von Python Nutzern für Python Nutzer veranstaltet. Um die Kosten zumindest teilweise zu refinanzieren, bitten wir die Teilnehmer um einen Beitrag in Höhe von EUR 10,00 inkl. 19% Mwst, Schüler und Studenten zahlen EUR 5,00 inkl. 19% Mwst. Wir möchten alle Teilnehmer bitten, den Betrag in bar mitzubringen. ANMELDUNG Da wir nur für ca. 20 Personen Sitzplätze haben, möchten wir bitten, sich per EMail anzumelden. Damit wird keine Verpflichtung eingegangen. Es erleichtert uns allerdings die Planung. Meeting Anmeldung bitte per Meetup https://www.meetup.com/Python-Meeting-Dusseldorf/ oder formlos per EMail an i...@pyddf.de WEITERE INFORMATIONEN Weitere Informationen finden Sie auf der Webseite des Meetings: http://pyddf.de/ Mit freundlichen Grüßen, -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Experts (#1, Jun 11 2019) >>> Python Projects, Coaching and Consulting ... http://www.egenix.com/ >>> Python Database Interfaces ... http://products.egenix.com/ >>> Plone/Zope Database Interfaces ... http://zope.egenix.com/ ::: We implement business ideas - efficiently in both time and costs ::: eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 http://www.egenix.com/company/contact/ http://www.malemburg.com/ -- https://mail.python.org/mailman/listinfo/python-list
pysftp / paramiko problem
I am trying to convert older code that uses ftplib as the endpoint has switched
to sftp only.
I am using the pysftp wrapper around paramiko.
The following script fails
def main():
import pysftp
with pysftp.Connection('ftp.remote.com', username='me', password='xx')
as sftp:
print('top level')
print(sftp.listdir())
print(sftp.normalize(u''))
print('direct list of ')
print(sftp.listdir(u''))
with sftp.cd(u''):
print(sftp.listdir())
if __name__ == '__main__':
main()
when run the program prints [u''] and then fails at the normalize command.
$ python tsftp.py
top level
[u'']
Traceback (most recent call last):
File "tsftp.py", line 13, in
main()
File "tsftp.py", line 6, in main
print(sftp.normalize(u''))
File "/home/rptlab/devel/env/lib/python2.7/site-packages/pysftp/__init__.py",
line 640, in normalize
return self._sftp.normalize(remotepath)
File
"/home/rptlab/devel/env/lib/python2.7/site-packages/paramiko/sftp_client.py",
line 632, in normalize
t, msg = self._request(CMD_REALPATH, path)
File
"/home/rptlab/devel/env/lib/python2.7/site-packages/paramiko/sftp_client.py",
line 813, in _request
return self._read_response(num)
File
"/home/rptlab/devel/env/lib/python2.7/site-packages/paramiko/sftp_client.py",
line 865, in _read_response
self._convert_status(msg)
File
"/home/rptlab/devel/env/lib/python2.7/site-packages/paramiko/sftp_client.py",
line 894, in _convert_status
raise IOError(errno.ENOENT, text)
IOError: [Errno 2] No such file.
I tried other commands, but it seems any attempt to cd to the directory
fails.
Using sftp in the shell directly I needed to add HostKeyAlgorithms=+ssh-dss for
this host.
Any pointers to what the problem could be?
--
Robin Becker
--
https://mail.python.org/mailman/listinfo/python-list
Why I am getting IndexError: tuple index out of range when converting a float value to a string?
I wrote the following lines of code:
xm = np.nanmean(x[indx],axis=None,dtype=float)
xsd = np.nanstd(x[indx],axis=None,dtype=float)
type(xm)# np.float64
type(xsd# np.float64
print(xm) # 0.5414720812182742
print(xsd) # 0.15748041033663002
print(str("{6.5f}".format(xm)))
I get the following error:
IndexError: tuple index out of range
Can someone suggest me why I am getting this error and how to overcome this?
Thanks in advance
--
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Re: Why I am getting IndexError: tuple index out of range when converting a float value to a string?
On 6/11/19 9:52 AM, madhavanbom...@gmail.com wrote:
I wrote the following lines of code:
xm = np.nanmean(x[indx],axis=None,dtype=float)
xsd = np.nanstd(x[indx],axis=None,dtype=float)
type(xm)# np.float64
type(xsd# np.float64
print(xm) # 0.5414720812182742
print(xsd) # 0.15748041033663002
print(str("{6.5f}".format(xm)))
I get the following error:
IndexError: tuple index out of range
Can someone suggest me why I am getting this error and how to overcome this?
Thanks in advance
print(str("{:6.5f}".format(xm)))
You want to apply the format 6.5f to the autoindexed element. You could
also explicitly index the 1st element (#0) as {0:6.5f}.
--
Rob Gaddi, Highland Technology -- www.highlandtechnology.com
Email address domain is currently out of order. See above to fix.
--
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Re: Why I am getting IndexError: tuple index out of range when converting a float value to a string?
On 6/11/2019 1:04 PM, Rob Gaddi wrote:
On 6/11/19 9:52 AM, madhavanbom...@gmail.com wrote:
I wrote the following lines of code:
xm = np.nanmean(x[indx],axis=None,dtype=float)
xsd = np.nanstd(x[indx],axis=None,dtype=float)
type(xm) # np.float64
type(xsd # np.float64
print(xm) # 0.5414720812182742
print(xsd) # 0.15748041033663002
print(str("{6.5f}".format(xm)))
I get the following error:
IndexError: tuple index out of range
Can someone suggest me why I am getting this error and how to overcome
this?
Show us the full traceback after expanding and reducing the example to
the minimum needed to exhibit the problem.
print(str("{:6.5f}".format(xm)))
You want to apply the format 6.5f to the autoindexed element.
Which works fine as it is.
>>> xm = 3.0
>>> print(str("{:6.5f}".format(xm)))
3.0
You could also explicitly index the 1st element (#0) as {0:6.5f}.
He could, but it makes no difference for the print statement above.
Applying str to an str is redundant, as it applying it to a print argument.
>>> print("{0:6.5f}".format(xm))
3.0
--
Terry Jan Reedy
--
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Re: FDs will be closed after exception automatically in python2.7?
D'Arcy Cain writes:
> On 2019-06-10 15:46, Alan Bawden wrote:
> > D'Arcy Cain writes:
> >> with open("file","w+") as fd:
> >
> > That makes the window smaller, but it doesn't actually eliminate it. Look
> > at the generated byte code. In both cases the call to open() is over and
> > the open file is created _before_ the SETUP_WITH instruction is executed.
>
> Am I correct in assuming that the window is there for process interrupts
> but not threads?
I believe that _either_ a signal handler invocation _or_ a thread switch
might happen immediately before the SETUP_WITH instruction, so there is a
window in either case.
You probably do have less to worry about in the thread switch case,
because eventually the thread will resume where it left off (there being no
way to kill a thread).
In the interrupt case it is possible that a KeyboardInterrupt will kill
your thread right before the SETUP_WITH, and then the stream's __exit__
method will never be called. But you don't have much to worry about in
that case either because the ONLY reference to the stream is on the top of
the stack, so after the thread is unwound the stream will become garbage,
and then the garbage collector will close it.
But my point was that replacing:
f = open(...)
with f:
with
with open(...) as f:
doesn't fully close _any_ timing windows, it's just clearer to write it
that way.
--
Alan Bawden
--
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Re: pysftp / paramiko problem
Robin Becker writes:
> I am trying to convert older code that uses ftplib as the endpoint has
> switched to sftp only.
>
> I am using the pysftp wrapper around paramiko.
>
> The following script fails
>
> def main():
> import pysftp
> with pysftp.Connection('ftp.remote.com', username='me',
> password='xx') as sftp:
> print('top level')
> print(sftp.listdir())
> print(sftp.normalize(u''))
>From the "sftp" documentation:
| normalize(self, remotepath)
| Return the expanded path, w.r.t the server, of a given path. This
| can be used to resolve symlinks or determine what the server believes
| to be the :attr:`.pwd`, by passing '.' as remotepath.
This suggests that your observation could be explained
by "u''" being a broken symlink.
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