Does anyone know how the code below could be changed so that the print only happens when the button “Run” is clicked? Now the print is performed every time “inp” is changed.
import streamlit as st
inp = st.number_input(“inp”, min_value=0, max_value=10, step=1, value=10)
if ‘click’ not in st.session_state:
st.session_state.click = False
def onClickFunction():
st.session_state.click = True
st.session_state.out = inp
runButton = st.button(“Run”,
on_click=onClickFunction())
if st.session_state.click:
st.write(“out”, st.session_state.out)
Solution: remove the “()” after the onClickFunction.
Related
Thanks in advance for your help.
I'm currently running a webscraper - this is the first time I've ever done something like this - It pulls addresses from the URL and then will match the address to the users input. This will be going into a chat bot, I wondering how I can make this run on Google Functions. Whats the process to do this, is there a tutorial anywhere?
This is my code so far. There is a small items file too
from scrapy.spiders import CrawlSpider, Rule
from scrapy.linkextractors import LinkExtractor
from ..items import DataItem
from fuzzywuzzy import fuzz
from urllib.parse import urljoin
import scrapy
class AddressesSpider(scrapy.Spider):
name = 'Addresses'
allowed_domains = ['find-energy-certificate.service.gov.uk']
postcode = "bh10+4ah"
start_urls = ['https://find-energy-certificate.service.gov.uk/find-a-certificate/search-by-postcode?postcode=' + postcode]
## def start_requests(self):
## self.first = input("Please enter the address you would like to match: ")
## yield scrapy.Request(url=self.start_urls[0], callback=self.parse)
def parse(self, response):
first = input("Please enter the address you would like to match: ")
highest_ratios = []
highest_item = None
for row in response.xpath('//table[#class="govuk-table"]//tr'):
address = row.xpath("normalize-space(.//a[#class='govuk-link']/text())").extract()[0].lower()
address = address.rsplit(',', 2)[0]
link = row.xpath('.//a[#class="govuk-link"]/#href').extract()
details = row.xpath("normalize-space(.//td/following-sibling::td)").extract()
ratio = fuzz.token_set_ratio(address, first)
item = DataItem()
item['link'] = link
item['details'] = details
item['address'] = address
item['ratioresult'] = ratio
if len(highest_ratios) < 3:
highest_ratios.append(item)
elif ratio > min(highest_ratios, key=lambda x: x['ratioresult'])['ratioresult']:
highest_ratios.remove(min(highest_ratios, key=lambda x: x['ratioresult']))
highest_ratios.append(item)
highest_ratios_100 = [item for item in highest_ratios if item['ratioresult'] == 100]
if highest_ratios_100:
for item in highest_ratios_100:
yield item
else:
yield max(highest_ratios, key=lambda x: x['ratioresult'])
if len(highest_ratios_100) > 1:
for i, item in enumerate(highest_ratios_100):
print(f"{i+1}: {item['address']}")
selected = int(input("Please select the correct address by entering the number corresponding to the address: ")) - 1
selected_item = highest_ratios_100[selected]
else:
selected_item = highest_ratios_100[0] if highest_ratios_100 else max(highest_ratios, key=lambda x: x['ratioresult'])
new_url = selected_item['link'][0]
new_url = str(new_url)
if new_url:
base_url = 'https://find-energy-certificate.service.gov.uk'
print(f'Base URL: {base_url}')
print(f'New URL: {new_url}')
new_url = urljoin(base_url, new_url)
print(f'Combined URL: {new_url}')
yield scrapy.Request(new_url, callback=self.parse_new_page)
def parse_new_page(self, response):
Postcode = response.xpath('normalize-space((//p[#class="epc-address govuk-body"]/text())[last()])').extract()
Town = response.xpath('normalize-space((//p[#class="epc-address govuk-body"]/text())[last()-1])').extract()
First = response.xpath(".//p[#class='epc-address govuk-body']").extract()
Type = response.xpath('normalize-space(//dd[1]/text())').extract_first()
Walls = response.xpath("//th[contains(text(), 'Wall')]/following-sibling::td[1]/text()").extract()
Roof = response.xpath("//th[contains(text(), 'Roof')]/following-sibling::td[1]/text()").extract()
Heating = response.xpath("//th[text()='Main heating']/following-sibling::td[1]/text()").extract_first()
CurrentScore = response.xpath('//body[1]/div[2]/main[1]/div[1]/div[3]/div[3]/svg[1]/svg[1]/text[1]/text()').re_first("[0-9+]{1,2}")
Maxscore = response.xpath('//body[1]/div[2]/main[1]/div[1]/div[3]/div[3]/svg[1]/svg[2]/text[1]/text()').re_first("[0-9+]{2}")
Expiry = response.xpath('normalize-space(//b)').extract_first()
FloorArea = response.xpath('//dt[contains(text(), "floor area")]/following-sibling::dd/text()').re_first("[0-9+]{2,3}")
Steps = response.xpath("//h3[contains(text(),'Step')]/text()").extract()
yield {
'Postcode': Postcode,
'Town': Town,
'First': First,
'Type': Type,
'Walls': Walls,
'Roof': Roof,
'Heating': Heating,
'CurrentScore': CurrentScore,
'Maxscore': Maxscore,
'Expiry': Expiry,
'FloorArea': FloorArea,
'Steps': Steps
}
I've tried googling and having a look around and can't get how to deploy this as a project to run on google functions or can I just copy the code into the console somewhere?
You can try running your spider from a script. However, a better solution would be to wrap scrapy in its own child process.
For example:
from multiprocessing import Process, Queue
from ... import MySpider
from scrapy.crawler import CrawlerProcess
from scrapy.utils.project import get_project_settings
def my_cloud_function(event, context):
def script(queue):
try:
settings = get_project_settings()
settings.setdict({
'LOG_LEVEL': 'ERROR',
'LOG_ENABLED': True,
})
process = CrawlerProcess(settings)
process.crawl(MySpider)
process.start()
queue.put(None)
except Exception as e:
queue.put(e)
queue = Queue()
# wrap the spider in a child process
main_process = Process(target=script, args=(queue,))
main_process.start() # start the process
main_process.join() # block until the spider finishes
result = queue.get() # check the process did not return an error
if result is not None:
raise result
return 'ok'
You can refer to this tutorial for more info.
I have encountered another working in notebook but not in voila issue. I have tried for a couple of hours but feel like I am still missing something and therefore seeking expert opinions here.
I have a function create_pages_and_run() that takes in a dictionary, d, as an input to generate a dashboard (the data type is ipyvuetify.generated.App.App). The dictionary can be retrieved from a json file scenario_dict using a country name as key where I designed a dropdown to collect the country name.
The purpose is to ask user to select a country name and the page will be redrawn/refreshed. I have the following code that works in notebook but not in Voila. (Works means that when a new country name is selected, the dashboard is displayed with the widgets using data from that countries)
scenario_dropdown = widgets.Dropdown(
options=all_scenarios,
value=initial_scenario,
description="Scenario",
layout=widgets.Layout(margin="0 20px 0 0", height="39px", width="15%"),
)
d = scenario_dict[initial_scenario]
app = create_pages_and_run(d)
#the below code works for notebook
def on_change(change):
global d, app
if change["name"] == "value" and (change["new"] != change["old"]):
d = scenario_dict[change["new"]]
app = create_pages_and_run(d)
clear_output()
display(app)
scenario_dropdown.observe(on_change)
My failed code using ipywidgets.Output is as below. (Failed in the sense, after selecting country name in the dropdown no change is observed).
scenario_dropdown = widgets.Dropdown(
options=all_scenarios,
value=initial_scenario,
description="Scenario",
layout=widgets.Layout(margin="0 20px 0 0", height="39px", width="15%"),
)
d = scenario_dict[initial_scenario]
app = create_pages_and_run(d)
out = widgets.Output()
with out:
display(app)
# the code works failed for voila
def on_change(change):
global d, app, out
if change["name"] == "value" and (change["new"] != change["old"]):
d = scenario_dict[change["new"]]
app = create_pages_and_run(d)
out.clear_output()
with out:
display(app)
display(out)
scenario_dropdown.observe(on_change)
I appreciate your help, thanks.
I'm not sure why your code didn't work. Maybe it was the use of globals which can be avoided. Could you provide a working example to test. Here is a working example based on your code that works in Voila.
import ipywidgets as widgets
all_scenarios = ['aa','bb','cc']
initial_scenario = all_scenarios[0]
scenario_dict = {}
scenario_dict['aa'] = 'do_this'
scenario_dict['bb'] = 'do_that'
scenario_dict['cc'] = 'do_what'
def create_pages_and_run(action):
print(action)
scenario_dropdown = widgets.Dropdown(
options=all_scenarios,
value=initial_scenario,
description="Scenario",
layout=widgets.Layout(margin="0 20px 0 0", height="39px", width="15%"),
)
d = scenario_dict[initial_scenario]
out = widgets.Output()
with out:
create_pages_and_run(d)
app = widgets.VBox([scenario_dropdown, out])
def on_change(change):
if change["name"] == "value" and (change["new"] != change["old"]):
d = scenario_dict[change["new"]]
out.clear_output()
with out:
create_pages_and_run(d)
scenario_dropdown.observe(on_change)
app
I have the following form classes:
class FieldsRequiredForm(FlaskForm):
class Meta:
def render_field(self, field, render_kw):
render_kw.setdefault('required', True)
return super().render_field(field, render_kw)
class SingleStringFieldForm(FieldsRequiredForm):
def __init__(self, field_label=None, question_id=None,
submit_label='Submit'):
super().__init__()
SingleStringFieldForm.answer = StringField(field_label)
SingleStringFieldForm.question_id = HiddenField(default=question_id)
SingleStringFieldForm.submit = SubmitField(submit_label)
class SingleRadioFieldForm(FieldsRequiredForm):
def __init__(self, field_label=None, question_id=None,
submit_label='Submit', choices=None):
super().__init__()
SingleRadioFieldForm.answer = RadioField(field_label, choices=choices)
SingleRadioFieldForm.question_id = HiddenField(default=question_id)
SingleRadioFieldForm.submit = SubmitField(submit_label)
The function that's using these forms looks like this:
#bp.route('/survey/<string:slug>', methods=['GET', 'POST'])
def question(slug):
survey = Survey.query.filter_by(slug=slug).first_or_404()
questions = survey.questions
question_ids = [question.id for question in questions]
if 'answers' not in session:
session['answers'] = json.dumps({id: None for id in question_ids})
answers = json.loads(session['answers'])
if request.method == 'POST':
record_submitted_answer()
answers = json.loads(session['answers'])
if None in answers.values():
question = get_next_question()
if question.category == 'word':
form = SingleStringFieldForm(field_label=question.question,
question_id=question.id)
elif question.category == 'likert':
form = SingleRadioFieldForm(field_label=question.question,
question_id=question.id,
choices=tuple(likert().items()))
else:
form = SingleStringFieldForm()
if form.validate_on_submit():
if None not in answers.values():
write_answers_to_database(survey=survey)
with open('app/static/ty.txt', 'r') as f:
ty = [x.strip() for x in f.readlines()]
return render_template('ty.html', ty=ty)
return redirect(url_for('survey.question', slug=slug))
return render_template('survey.html', form=form, answers=answers)
The first time I load the page after clearing the session, the form doesn't show up, and when I'm stepping through with a debugger when that happens, the debugger reports that form.answer has a value of:
<UnboundField(RadioField, ('Question 1',), {'choices': (('1', 'Strongly Agree'),
('2', 'Agree'), ('3', 'Neutral'), ('4', 'Disagree'), ('5', 'Strongly Disagree'))})>
If I reload the page, it has this value:
<app.survey.forms.SingleRadioFieldForm object at 0x110788d30>
I don't notice anything else different in the state of the program between the two page loads.
What is causing this the first time and how can I fix it?
While I still don't know why the original function wasn't working on first page load, but did on a reload, I went about this in another way and solved the problem. Instead of setting the fields within __init__, I subclassed within the function and edited the class directly.
#bp.route('/survey/<string:slug>', methods=['GET', 'POST'])
def survey(slug):
class F(FieldsRequiredForm):
pass
...
if None in answers.values():
question = get_next_question()
F.question_id = HiddenField(default=question.id)
if question.category == 'word':
F.answer = StringField(question.question)
elif question.category == 'likert':
F.answer = RadioField(question.question, choices=tuple(likert().items()))
F.submit = SubmitField('Submit')
else:
F.answer = StringField()
form = F()
...
I need to show a find dialog after pressing Ctrl+F in QWidget, which contains a QTableView. The find dialog will search in the first column of the table to find the matches.
I can show the QMessageBox after pressing Ctrl+F with the following code:
class Widget(QWidget):
def __init__(self,md,parent=None):
QWidget.__init__(self,parent)
layout=QVBoxLayout(self)
# initially construct the visible table
tv = QTableView()
# uncomment this if the last column shall cover the rest
tv.horizontalHeader().setStretchLastSection(True)
tv.show()
# set black grid lines
self.setStyleSheet("gridline-color: rgb(39, 42, 49)")
# construct the Qt model belonging to the visible table
model = NvmQtModel(md)
tv.setModel(model)
tv.resizeRowsToContents()
tv.resizeColumnsToContents()
# set the shortcut ctrl+F for find in menu
shortcut = QShortcut(QKeySequence('Ctrl+f'), self)
shortcut.activated.connect(self.handleFind)
# delegate for decimal
delegate = NvmDelegate()
tv.setItemDelegate(delegate)
self.setGeometry(200,200,600,600) # adjust this later
layout.addWidget(tv)
# set window title
self.setWindowTitle("TITLE")
# find function: search in the first column of the table
def handleFind(self):
reply = QMessageBox.question(
self, 'Find', 'Find Dialog',
QMessageBox.Yes | QMessageBox.No)
if reply == QMessageBox.Yes:
print('Yes')
else:
print('No')
Then I changed the QMessageBox to a QDialog, but now it does not work. I would appreciate if you could tell me where I am not doing it correctly:
class Widget(QWidget):
def __init__(self,md,parent=None):
QWidget.__init__(self,parent)
layout=QVBoxLayout(self)
# initially construct the visible table
tv = QTableView()
# uncomment this if the last column shall cover the rest
tv.horizontalHeader().setStretchLastSection(True)
tv.show()
# set black grid lines
self.setStyleSheet("gridline-color: rgb(39, 42, 49)")
# construct the Qt model belonging to the visible table
model = NvmQtModel(md)
tv.setModel(model)
tv.resizeRowsToContents()
tv.resizeColumnsToContents()
# set the shortcut ctrl+F for find in menu
shortcut = QShortcut(QKeySequence('Ctrl+f'), self)
shortcut.activated.connect(self.handleFind)
# delegate for decimal
delegate = NvmDelegate()
tv.setItemDelegate(delegate)
self.setGeometry(200,200,600,600) # adjust this later
layout.addWidget(tv)
# set window title
self.setWindowTitle("TITLE")
# find function: search in the first column of the table
def handleFind(self):
findDialog = QDialog()
findLabel = QLabel("Find what", findDialog)
findField = QLineEdit(findDialog)
findButton = QPushButton("Find", findDialog)
closeButton = QPushButton("Close", findDialog)
findDialog.show()
If you want the Dialog be a modal Dialog, call findDialog.exec_():
from PyQt4.QtGui import *
def handleFind():
findDialog = QDialog()
#findDialog.setModal(True)
findLabel = QLabel("Find what", findDialog)
findField = QLineEdit(findDialog)
findButton = QPushButton("Find", findDialog)
closeButton = QPushButton("Close", findDialog)
#findDialog.show()
findDialog.exec_()
app = QApplication([])
b = QPushButton("click me")
b.clicked.connect(handleFind)
b.show()
app.exec_()
I have a collection of button that I've created and need to change the color of the button when it's pressed. Currently it set the default colors (grey = inactive; light blue = active):
but I want to change the color of active to red.
Here's my button class:
class ButtonClass(wx.Panel):
def __init__(self, parent, name, id):
wx.Panel.__init__(self, parent)
self.name = name
self.taskid = id
self.button = wx.ToggleButton(self, 1, size=(50, 50))
self.button.SetLabel('Start')
self.mainSizer = wx.BoxSizer(wx.HORIZONTAL)
self.mainSizer.Add(self.button)
self.Bind(wx.EVT_TOGGLEBUTTON, self.toggledbutton, self.button)
# Where the buttons change state
def toggledbutton(self, event):
# Active State
if self.button.GetValue() == True:
self.button.SetLabel('Stop')
# Inactive State
if self.button.GetValue() == False:
self.button.SetLabel('Start')
I've tried using self.button.SetColour , self.button.SetBackgroundColour , self.button.SetForegroundColour all of which were not successful. Is there a way to accomplish this within wxpython?
It seems to be platform dependant. This worked for me in Ubuntu, but not in Windows.
self.ToggleButtonObj = wx.ToggleButton(self, -1, 'ButtonLabel')
self.ToggleButtonObj.Bind(wx.EVT_TOGGLEBUTTON, self.OnToggleClick)
def OnToggleClick(self,event):
if self.ToggleButtonObj.GetValue():
self.ToggleButtonObj.SetBackgroundColour('#color1')
else:
self.ToggleButtonObj.SetBackgroundColour('#color2')
Workaround:
self.Button = wx.Button(self, -1, 'ButtonLabel')
self.Button.Bind(wx.EVT_BUTTON, self.OnToggleClick)
self.ButtonValue = False
def OnToggleClick(self,event):
if not self.ButtonValue():
self.Button.SetBackgroundColour('#color1')
self.ButtonValue = True
else:
self.Button.SetBackgroundColour('#color2')
self.ButtonValue = False
SetBackgroundColour() worked for me using colour in RGB mode (like (255,255,255)) in Windows 7 with python 2.7.3.