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I'm having this issue when creating the tables using SQLAlquemy in Flask, in a virtualenv.
I do:
>>> from mod_db import modelx
>>> modelx.create_all()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute 'create_all'
modelx is:
from flask import Flask
from flask.ext.sqlalchemy import SQLAlchemy
app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'postgresql://gaz:123#localhost:5432/test'
db = SQLAlchemy(app)
db classes...
What can it be?
Thanks!
If you’re trying to use the create_all on db, that’d be it.
modelx.db.create_all()
Related
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I want to automate the compiling of my MATLAB script to an installer with MATLAB's compiler.build.standaloneApplication to create the standalone app and compiler.package.installer to create an installer.
I have python_script.exe file that my MATLAB script uses that is why I want to add it during creating the standalone app. The issue is the installed application using the outputted installer with the code below isn't adding the necessary python.exe file.
Here is my current progress.
Create the standalone app code.
opts = compiler.build.StandaloneApplicationOptions(...
'main.m', ...
'EmbedArchive', 'On', ...
'ExecutableIcon', 'C:\Program Files\MATLAB\.\toolbox\compiler\resources\default_icon_48.png', ...
'ExecutableName', 'test_app', ...
'ExecutableSplashScreen', 'C:\Program Files\MATLAB\.\toolbox\compiler\resources\default_splash.png', ...
'ExecutableVersion', '1', ...
'TreatInputsAsNumeric', 'Off', ...
'AdditionalFiles', ['python_script.exe'], ...
'AutoDetectDataFiles', 'off', ...
'OutputDir', '.\test_app_installer' ...
);
results = compiler.build.standaloneApplication(opts);
Use the result to create the package installer using the code below.
compiler.package.installer(results)
The 'AdditionalFiles' option should be a cell array of file names.
Change
['python_script.exe']
to
{'python_script.exe'}
Also make sure that the file python_script.exe is on the Matlab path on in the directory where the build is started.
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I have vscode set up with the rust-analyzer plugin and it works in most cases. I have just added an optional feature but I cannot get vscode/rust-analyzer to parse the code, instead it always shows:
code is inactive due to #[cfg] directives: std is disabled rust-analyzer (inactive-code)
Cargo.toml:
[dependencies]
rand = {version = "0.8.5", default-features = false}
[features]
std = ["rand/std"]
main.rs:
#[cfg(std)]
use rand;
fn main() {}
My settings file has these lines:
"rust-analyzer.cargo.features": "all",
"rust-analyzer.checkOnSave.features": "all"
I thought it might be related to using both a VSCode workspace and a cargo workspace but simplifying it down to a stub cargo project shows the same issue.
Finally, I followed the advice in this question (no other plugins running and enabled RA_LOGS) but the output appears to show the command I expect with --all-features: How to activate an optional dependency?
[INFO flycheck] restart flycheck "cargo" "check" "--workspace" "--message-format=json" "--manifest-path" "$HOME/workspace/stackoverflow/Cargo.toml" "--all-targets" "--all-features"
Any idea what else I can check?
Sorry, I realise I was using the wrong form for cfg. It should have been:
#[cfg(feature = "std")]
In my real code I had a typo with the same effect #[cfg(features = "std")]
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Closed 7 years ago.
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my aim is to create a database and use a regular commands in strawberry perl...
Many are saying "StrawberryPerl comes bundled with drivers for MySQL"
how to setup the necessary development environment...
how to start? and where to start???
use DBI qw( );
my $dsn = "dbi:mysql:database=$database";
my $dbh = DBI->connect($dsn, $user, $password, {
AutoCommit => 1,
PrintWarn => 1,
PrintError => 0,
RaiseError => 1,
});
If the database server is on another machine, add ";host=$hostname" to the DSN.
If the database server is on a port other than the default, add ";port=$port" to the DSN.
Refer to DBI's documentation for how to issue queries.
I'm a having a problem with the python-docx library. I'm following this page's example however it doesn't seem to work. Can anyone provide some assistance?
>>> all_runs[0]
<docx.text.Run object at 0x7f49b899c5d0>
>>> play=all_runs[0]
>>> play.add_break(WD_BREAK.PAGE)
>>> play.breaks
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'Run' object has no attribute 'breaks'
That page is part of the design documentation, not as-built documentation (notice the title 'Candidate' protocol). There is no breaks property implemented on Run as yet.
If you can say a bit about what you're trying to accomplish I may be able to help.
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Closed 8 years ago.
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I am working with JSON parsing for the first time on Iphone. I need to parse the following json string:
{
EmpMaster :
[
{"empId" : 1,"firstName" : "Yogesh","lastName":"Chaudhari","isSupervisor" : "1","supervisorId":"1"},
{"empId" : 2,"firstName" : "Sahil","lastName":"Khurana","isSupervisor" : "1","supervisorId":"1"},
{"empId" : 3,"firstName" : "Anutag","lastName":"Chaudhari","isSupervisor" : "1","supervisorId":"1"},
{"empId" : 4,"firstName" : "Sameer","lastName":"Vaidya","isSupervisor" : "1","supervisorId":"1"}
]
}
Please provide me with some sample code or link with the help of which i can parse the json string and separate the empId, firstName, lastName, isSupervisor and supervisorId.
You need to add JSON Framework . It will simply parse your JSON String and return you NSDictionary with all the keys.
MODIFIED
Download Zip file from this link
1. Open Folder and rename Classes folder to "JSON".
2. Copy JSON Folder and include in your project.
3. Import header file like below in controller where you want to parse JSON String.
#import "SBJSON.h"
#import "NSString+SBJSON.h"
4. Now, Parse your response string in to NSDictionary like below.
NSMutableDictionary *dictResponse = [strResponse JSONValue];
Hope this help.
One of the most popular framework is touchJSON. Easy to add, easy to use.