Web2py application: How to reference .yaml file in controller? - python-2.7

I have an app running online under web2py. Now, i am adding names.yml file which i need to call in my controller file (default.py) on web2py server. where should I keep the .yml/.yaml files. Currently I have kept them in views with default/names.yml but when I call it in default.py like:
dicttagger = DictionaryTagger([ 'default/names.yml', 'default/surname.yml'])
i get no such file error.
Also tried below:
dicttagger = DictionaryTagger([ 'views/default/names.yml', 'views/default/surname.yml'])
same error
class snapshot as under:
class DictionaryTagger(object):
def __init__(self, dictionary_paths):
files = [open(path, 'r') for path in dictionary_paths]
dictionaries = [yaml.load(dict_file) for dict_file in files]
map(lambda x: x.close(), files)
Any suggestions as how to do this or am I making mistake of using yaml/yml file in we2py and it doesn't work in web2py app hosted online?
question 2
thank you. it resolved an error but I am not sure how to add nltk.download() into my hosted app. I keep getting the below error. Can you pls have a look:
Traceback
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Traceback (most recent call last):
File "/home/prakashsukhwal/web2py/gluon/restricted.py", line 220, in restricted
exec ccode in environment
File "/home/prakashsukhwal/web2py/applications/Sensiva/controllers/default.py", line 4, in
nltk.download()
File "/usr/local/lib/python2.7/dist-packages/nltk/downloader.py", line 644, in download
self._interactive_download()
File "/usr/local/lib/python2.7/dist-packages/nltk/downloader.py", line 958, in _interactive_download
DownloaderShell(self).run()
File "/usr/local/lib/python2.7/dist-packages/nltk/downloader.py", line 981, in run
user_input = raw_input('Downloader> ').strip()
EOFError: EOF when reading a line
Error snapshot help
(EOF when reading a line)
inspect attributes
Frames
File /home/prakashsukhwal/web2py/gluon/restricted.py in restricted at line 220 code arguments variables
File /home/prakashsukhwal/web2py/applications/Sensiva/controllers/default.py in at line 4 code arguments variables
File /usr/local/lib/python2.7/dist-packages/nltk/downloader.py in download at line 644 code arguments variables
File /usr/local/lib/python2.7/dist-packages/nltk/downloader.py in _interactive_download at line 958 code arguments variables
File /usr/local/lib/python2.7/dist-packages/nltk/downloader.py in run at line 981 code arguments variables
Function argument list
(self=)
Code listing
def run(self):
print 'NLTK Downloader'
while True:
self._simple_interactive_menu(
'd) Download', 'l) List', ' u) Update', 'c) Config', 'h) Help', 'q) Quit')
user_input = raw_input('Downloader> ').strip()
if not user_input: print; continue
command = user_input.lower().split()[0]
args = user_input.split()[1:]
try:
Variables
user_input undefined
builtinraw_input
).strip undefined
Context

You can store the files wherever you want, but if you're using the Python open function, you'll need to give it full paths, not paths relative to the web2py application folder. Instead, try:
import os
dicttagger = DictionaryTagger([os.path.join(request.folder, 'views',
'default', 'names.yml'),
...])

Related

cx_Freeze: 'The system cannot find the file specified' error during build [win10] [PyQt4] [python2.7]

I'm trying to create a .exe file from a python script (which use PyQt4 GUI and matplotlib). I'm using cx_Freeze version 5.1.1 for 64-bit windows with the following setup.py:
import cx_Freeze
import sys
import matplotlib
base = "Win32GUI"
includes = ["atexit"]
buildOptions = dict(
#create_shared_zip=False,
#append_script_to_exe=True,
includes=includes
)
executables = [cx_Freeze.Executable(script = "main.py", base = base)] # icon = "chart32.jpg")]
cx_Freeze.setup(
name= "1ChPlotGUI",
options = dict(build_exe=buildOptions), # {"build_exe": {"packages": ["matplotlib"], "include_files":["chart32.jpg"]}},
version = "0.01",
description = "1 Channel Plotting app with GUI",
executables = executables
)
after running
python setup.py build
in the cmd from the position of
C:\Users\Us.Er\Pyth-examples\Qt\UI-examples\ChannelplotGUI-to-exe
I have something like this:
running build
running build_exe
copying c:\users\Us.Er\appdata\local\enthought\canopy\user\lib\site-
packages\cx_Freeze\bases\Win32GUI.exe -> build\exe.win-amd64-2.7\main.exe
copying
c:\users\Us.Er\appdata\local\enthought\canopy\user\scripts\python27.dll ->
build\exe.win-amd64-2.7\python27.dll
Traceback (most recent call last):
File "setup.py", line 23, in <module>
executables = executables
File "c:\users\Us.Er\appdata\local\enthought\canopy\user\lib\site-packages\cx_Freeze\dist.py", line 349, in setup
distutils.core.setup(**attrs)
File "C:\Users\Us.Er\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.7.4.3348.win-x86_64\lib\distutils\core.py", line 151, in setup
dist.run_commands()
File "C:\Users\Us.Er\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.7.4.3348.win-x86_64\lib\distutils\dist.py", line 953, in run_commands
self.run_command(cmd)
File "C:\Users\Us.Er\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.7.4.3348.win-x86_64\lib\distutils\dist.py", line 972, in run_command
cmd_obj.run()
File "C:\Users\Us.Er\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.7.4.3348.win-x86_64\lib\distutils\command\build.py", line 127, in run
self.run_command(cmd_name)
File "C:\Users\Us.Er\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.7.4.3348.win-x86_64\lib\distutils\cmd.py", line 326, in run_command
self.distribution.run_command(command)
File "C:\Users\Us.Er\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.7.4.3348.win-x86_64\lib\distutils\dist.py", line 972, in run_command
cmd_obj.run()
File "c:\users\Us.Er\appdata\local\enthought\canopy\user\lib\site-packages\cx_Freeze\dist.py", line 219, in run
freezer.Freeze()
File "c:\users\Us.Er\appdata\local\enthought\canopy\user\lib\site-packages\cx_Freeze\freezer.py", line 626, in Freeze
self._FreezeExecutable(executable)
File "c:\users\Us.Er\appdata\local\enthought\canopy\user\lib\site-packages\cx_Freeze\freezer.py", line 232, in _FreezeExecutable
self._AddVersionResource(exe)
File "c:\users\Us.Er\appdata\local\enthought\canopy\user\lib\site-packages\cx_Freeze\freezer.py", line 172, in _AddVersionResource
stamp(fileName, versionInfo)
File "c:\users\Us.Er\appdata\local\enthought\canopy\user\lib\site-packages\win32\lib\win32verstamp.py", line 159, in stamp
h = BeginUpdateResource(pathname, 0)
pywintypes.error: (2, 'BeginUpdateResource', 'The system cannot find the file specified.')
What is the possible solution for above problem?
EDIT
To be clear: I don't want to add any icon for now. I am happy with just a simple, working .exe
I have added the target in this way:
executables = [cx_Freeze.Executable(script = "main.py", base = base, targetName="main.exe")]
I have tried to add
targetDir = "C:\Users\Us.Er\Pyth-examples\Qt\UI-examples\ChannelplotGUI-to-exe"
anyway, the return is:
TypeError: __init__() got an unexpected keyword argument 'targetDir'
The main problem is as before - the error with last lines as:
h = BeginUpdateResource(pathname, 0)
pywintypes.error: (2, 'BeginUpdateResource', 'The system cannot find the file specified.')
In my case the issue was solved by changing
'build_exe': 'build_folder'
to
'build_exe': './/build_folder'
This is because open(pathname) would work on the pathname='build_folder\\executable.exe', allowing the code to advance during the check at the begginning of the stamp method, but BeginUpdateResource(pathname, 0) would only work on './/build_folder\\executable.exe'
Solution
options = {
'build_exe': {
'build_exe': './/build'
}
}
Note: .//build here, build is the folder name where you want to build your project.
Thanks to help of user jpeg I managed to successfully freeze the script.
To eliminate the problem with path I have added a line print(pathname) in win32verstamp.py before line 159.
The print statement worked fine showing the relative path to the newly made .exe file.
Despite showing the correct path, the error was still present. I went to the stamp() definition in win32verstamp.py and found a try - except block, and have inserted print(pathname) over there.
The part is:
def stamp(pathname, options):
# For some reason, the API functions report success if the file is open
# but doesnt work! Try and open the file for writing, just to see if it is
# likely the stamp will work!
#print("Current path is " + pathname)
try:
f = open(pathname, "a+b")
f.close()
print("Possible to open" + pathname) #<---line added
except IOError, why:
print "WARNING: File %s could not be opened - %s" % (pathname, why)r code here
....
Since that the freeze was possible. (Not sure why tho, I'm happy to add some info if explanation is known)
I had the same issue tying to freeze my PyQt5 app (using python 3.7 under windows 10) with the following message :
h = BeginUpdateResource(pathname, 0)
pywintypes.error: (2, 'BeginUpdateResource', 'Le fichier spécifié est introuvable.')
So I choose to use cx_freeze Sample provided as a first step.
(This samples are availables after cx_freeze installation under MyVENVpath\Lib\site-packages\cx_Freeze\samples)
The very basic PyQt5 exemple was working, but my case was way more complex as I used several sub Python class I have developed.
I honestly don't really understand why but I was able to make it work So here is all modifications I have performed :
In setup.py identify sub python files
add my personnal packages and class like this :
include = ["PyQt5", "PySerial", "myclass1", "myclass2", "myclass3", "PandasModel"]
packages = ["PySerial", "myclass1", "myclass2", "myclass3", "PandasModel", "pandas","math"]
Use relative path in setup.py
executables = [cx_Freeze.Executable(os.getcwd() + r'\..\..\MyFileName.py', base=base)]
include_files = [(os.getcwd() + r'\..\..\CalibrationTool.ui', r'Inputs\GUI\CalibrationTool.ui')
The reason for "...." is to jump two directories higher level, as my python.exe is in sub folders VENV\Script\
Add python Files containing "Myclass1" at same level as setup.py.
Even if in my application, class files are in a subfolder Input\Packages\Myclass1File.py, I had to copy-paste it at the same level as setup.py. This way the include and package line of setup.py work and was able to generate the executable.
Last but not least,the terminal command
I have no idea why but the only command who did suceed was:
to use full path to the python.exe and full path to the setup.py with the "build" at the end.
cmd:>C:\Folder1\Folder2\MyVENV\Scripts\python.exe D:\Folder1\Folder2\setup.py build
This finaly created the executable in a build folder under C:\Folder1\Folder2\MyVENV\Scripts\

How to take multiple screenshots through Selenium in Python?

GECKODRIVER_PATH = 'F:/geckodriver.exe'
firefox_options = Options()
firefox_options .add_argument("-headless")
driver = webdriver.Firefox(executable_path=CHROMEDRIVER_PATH, firefox_options = firefox_options )
test = []
test.append('http://google.com')
test.append('http://stackoverflow.com')
for x in test:
print x
driver.get(x)
driver.set_page_load_timeout(20)
filename = str(x)+'.png'
driver.save_screenshot( filename )
driver.close()
Now, how can I take multiple screenshots and save them in the different filename? As you can see I am trying to save the filename according to domain URL but failed.
See the error below:
http://google.com
http://card.com
Traceback (most recent call last):
File "F:\AutoRecon-master\test.py", line 125, in <module>
driver.get(x)
File "C:\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 326, in get
self.execute(Command.GET, {'url': url})
File "C:\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 314, in execute
self.error_handler.check_response(response)
File "C:\Python27\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.SessionNotCreatedException: Message: Tried to run command without establishing a connection
Can anyone please tell me what is the exact problem is? Will be a big help.
Try to move driver.close() out of loop:
for x in test:
print x
driver.get(x)
driver.set_page_load_timeout(20)
filename = str(x)+'.png'
driver.save_screenshot( filename )
driver.close()
Also note that x is already a string, so there is no need in str(x)
P.S. I'm not sure that http://stackoverflow.com.png filename is acceptable, you might need to use:
filename = x.split('//')[-1] + '.png'
Tried to run command without establishing a connection
you are closing the browser within your for loop... so the 2nd time through the loop it fails with the error above (since the browser is closed, the connection to geckodriver has already been terminated).
other issues:
you are setting the page_load_timeout after you have already fetched the page, so it is not doing anything useful.
using CHROMEDRIVER_PATH as the name for Geckodriver is just confusing. Chromedriver is not used at all here.

I don't understand how this "os.join" function is working? I am getting errors constantly and no reading on os functions is helping me

Here's the code
sys.path.append( "../tools/" )
from parse_out_email_text import parseOutText #(its just another .py file that has a function I wrote)
from_sara = open("from_sara.txt", "r")
from_chris = open("from_chris.txt", "r")
from_data = []
word_data = []
temp_counter = 0
for name, from_person in [("sara", from_sara), ("chris", from_chris)]:
for path in from_person:
### only look at first 200 emails when developing
### once everything is working, remove this line to run over full dataset
temp_counter += 1
if temp_counter < 200:
path = os.path.join('..', path[:-1]) #(THIS IS THE PART I CAN'T GET MY HEAD AROUND)
print path
email = open(path, "r")
email.close()
print "emails processed"
from_sara.close()
from_chris.close()
When I run this, it gives me an error as shown below:
Traceback (most recent call last):
..\maildir/bailey-s/deleted_items/101.
File "C:/Users/AmitSingh/Desktop/Data/Udacity/Naya_attempt/vectorize_text.py", line 47, in <module>
email = open(path, "r")
IOError: [Errno 2] No such file or directory: '..\\maildir/bailey-s/deleted_items/101.'
I don't even have this """'..\maildir/bailey-s/deleted_items/101.'""" directory path on my laptop, I tried to change the path by replacing the '..' in the code by the actual path name to the folder where I keep all the files, and nothing changes.
path = os.path.join('..', path[:-1])
This code is part of an online course on machine learning and I have been stuck at this point for 3 hours now. Any help would be really appreciated.
(P.S. This is not a homework question and there are no grades attached to this, its a free online course)
your test data is not there so it cannot find it. you should run start-up code again and make sure the necessary maildir are all there.
Go to tools inside your udacity project directory and run startup.py.
It is about 400 Mb so sit back and relax!
I know this is extremely late, but I found this post after having the exact same problem.
All the answers that I found here and on other sites, even the issue requests in the original github, were just "run startup.py" I already did that. However, it was telling me:
Traceback (most recent call last):
File "K:\documents\Udacity\Mini-Projects\ud120-projects\text_learning\vectorize_text.py", line 48, in <module>
email = open(path, "r")
FileNotFoundError: [Errno 2] No such file or directory: '..\\maildir/bailey-s/deleted_items/101.'
Just like yours. I then found where this file was located and it was indeed on my computer
I added 'tools' to the os.path.join() line as you can see here:
for name, from_person in [("sara", from_sara), ("chris", from_chris)]:
for path in from_person:
### only look at first 200 emails when developing
### once everything is working, remove this line to run over full dataset
temp_counter += 1
if temp_counter < 200:
#path = os.path.join('..', path[:-1]) <---original
path = os.path.join('..','tools', path[:-1])
print(path)
email = open(path, "r")
This worked for me finally. So, I hope it helps anyone else that stumbles on this problem in the future.
Also, I noticed on some examples I found of other repos of the lessons. Their 'tools' folder was named 'utils'.
Here is an example, this is a repo that someone tweaked to use jupyter notebooks to run the lessons So, use the one that you have.
In your Udacity course folder, first go to tools directory, check if you have maildir folder present and if it has got subfolders in it, if they are present then go back to text_learning/vectorize_text.py, find this line of code path = os.path.join('..', path[:-1]), change it to path = os.path.join('../tools/', path[:-1]),
On terminal, cd text_learning , then python vectorize_text.py, this should solve the issue.
If this does not solve the issue, then Go to tools inside your udacity project directory and run startup.py. Wait till the process is complete
Repeat step 1.

error when pipe output to python script on windows cmd

I generate xml content from input file using an xml_gen.bat file (I cannot modify it), and I use it like this on Windows cmd to generate xml:
xml_gen --options [inputname] [optional outputname]
I also have a python script xml_parse.py that parses xml input:
import sys
import lxml.etree as ET
def xml_parse(xml_input):
for event, elem in ET.iterparse(xml_input, events=('end', ), tag='TAG'):
# do something
# write parsed content to file
elem.clear()
def main():
xml_parse(sys.stdin)
if __name__ == '__main__':
main()
Both xml_gen and xml_parse.py work when tested separately, i.e., xm_gen can take an input file and generate a correct xml file; xml_parse.py (ran in PyCharm) can take an input xml file from disk and do the parsing correctly.
Since my actual experiment will generate gigabytes of xml from xml_gen, I want to pipe the output of xml_gen directly to the python script to process them.
When I tried:
dir_to_xml_gen\xml_gen --option dir_to_input\input | python xml_parse.py
It produced such error:
Traceback (most recent call last): File "xml_parse.py", line 77, in
main() File "xml_parse.py", line 71, in main xml_parse(sys.stdin) File "xml_parse.py", line 50, in xml_parse for event, elem in ET.iterparse(xml_parse, events=('end', ), tag='TAG'):File "iterparse.pxi", line 208, in lxml.etree.iterparse.next (src\lxml\lxml.etree.c:131498) lxml.etree.XMLSyntaxError: Document is empty, line 2, column 1 ! System error ! 'SPIO_E_END_OF_FILE'
when I tried: dir_to_xml_gen\xml_gen --option dir_to_input\input | python xml_parse.py
it produced similar error: System error 'SPIO_E_END_OF_FILE'
I'm aware of the issues in Cannot redirect output when I run Python script on Windows using just script's name, and followed directions here STDIN/STDOUT Redirection May Not Work If Started from a File Association, but didn't solve my problem. Thank you for your help.

GNU radio:error in running modtool for making new modules

hi i am trying to add new blocks in gnuradio . I tried to follow the the procedure mentioned in gnuradio website
http://gnuradio.org/redmine/projects/gnuradio/wiki/OutOfTreeModules?version=24
but when in terminal window i write "gr_modtool newmod howto"
it gives following error
File "/usr/local/bin/gr_modtool", line 41, in <module>
main()
File "/usr/local/bin/gr_modtool", line 36, in main
modtool.setup()
File "/usr/local/lib/python2.7/dist-packages/gnuradio/modtool/modtool_newmod.py", line 70, in setup
self._srcdir = gr.prefs().get_string('modtool', 'newmod_path', options.srcdir)
File "/usr/local/lib/python2.7/dist-packages/gnuradio/gr/gnuradio_core_general.py", line 18953, in get_string
return _gnuradio_core_general.gr_prefs_get_string(self, *args, **kwargs)
TypeError: in method 'gr_prefs_get_string', argument 4 of type 'std::string const'
please tell me how to fix it.
To create your own modules in GNU Radio Companion using the gr_modtool try this:
$ gr_modtool newmod
Name of the new module: myPlugin
To add processing blocks to your newly created module use:
../gr-myPlugin$ gr_modtool add
You can choose if you want a cpp or python block by adding the "-l" specificier:
../gr-myPlugin$ gr_modtool add -l python
More info:
http://lists.gnu.org/archive/html/discuss-gnuradio/2013-03/msg00216.html