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general.py
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general.py
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"""General pages."""
import datetime
import re
from collections import defaultdict
from copy import deepcopy
import requests
from flask import Blueprint
from flask import current_app
from flask import g
from flask import redirect
from flask import render_template
from flask import request
from flask_wtf import FlaskForm
from wtforms import StringField
from wtforms.validators import DataRequired
from pypistats.models.download import RECENT_CATEGORIES
from pypistats.models.download import OverallDownloadCount
from pypistats.models.download import PythonMajorDownloadCount
from pypistats.models.download import PythonMinorDownloadCount
from pypistats.models.download import RecentDownloadCount
from pypistats.models.download import SystemDownloadCount
blueprint = Blueprint("general", __name__, template_folder="templates")
MODELS = [OverallDownloadCount, PythonMajorDownloadCount, PythonMinorDownloadCount, SystemDownloadCount]
class PackageSearchForm(FlaskForm):
"""Search form."""
name = StringField("Package: ", validators=[DataRequired()])
@blueprint.route("/", methods=("GET", "POST"))
def index():
"""Render the home page."""
form = PackageSearchForm()
if form.validate_on_submit():
package = form.name.data
return redirect(f"/search/{package.lower()}")
package_count = RecentDownloadCount.query.filter_by(category="month").count()
return render_template("index.html", form=form, user=g.user, package_count=package_count)
@blueprint.route("/health")
def health():
return "OK"
@blueprint.route("/search/<package>", methods=("GET", "POST"))
def search(package):
"""Render the home page."""
package = package.replace(".", "-")
form = PackageSearchForm()
if form.validate_on_submit():
package = form.name.data
return redirect(f"/search/{package}")
results = (
RecentDownloadCount.query.filter(
RecentDownloadCount.package.like(f"{package}%"), RecentDownloadCount.category == "month"
)
.order_by(RecentDownloadCount.package)
.limit(20)
.all()
)
packages = [r.package for r in results]
if len(packages) == 1:
package = packages[0]
return redirect(f"/packages/{package}")
return render_template("search.html", search=True, form=form, packages=packages, user=g.user)
@blueprint.route("/about")
def about():
"""Render the about page."""
return render_template("about.html", user=g.user)
@blueprint.route("/faqs")
def faqs():
"""Render the FAQs page."""
return render_template("faqs.html", user=g.user)
@blueprint.route("/packages/<package>")
def package_page(package):
"""Render the package page."""
package = package.replace(".", "-")
# Recent download stats
try:
# Take the min of the lookback and 180
lookback = min(abs(int(request.args.get("lookback", 180))), 180)
except ValueError:
lookback = 180
start_date = str(datetime.date.today() - datetime.timedelta(lookback))
recent_downloads = RecentDownloadCount.query.filter_by(package=package).all()
if len(recent_downloads) == 0:
return redirect(f"/search/{package}")
recent = {r: 0 for r in RECENT_CATEGORIES}
for r in recent_downloads:
recent[r.category] = r.downloads
# PyPI metadata
metadata = None
if package != "__all__":
try:
metadata = requests.get(f"https://pypi.python.org/pypi/{package}/json", timeout=5).json()
if metadata["info"].get("requires_dist", None):
requires, optional = set(), set()
for dependency in metadata["info"]["requires_dist"]:
package_name = re.split(r"[^0-9a-zA-Z_.-]+", dependency.lower())[0]
if "; extra ==" in dependency:
optional.add(package_name)
else:
requires.add(package_name)
metadata["requires"] = sorted(requires)
metadata["optional"] = sorted(optional)
except Exception:
pass
# Get data from db
model_data = []
for model in MODELS:
records = (
model.query.filter_by(package=package)
.filter(model.date >= start_date)
.order_by(model.date, model.category)
.all()
)
if model == OverallDownloadCount:
metrics = ["downloads"]
else:
metrics = ["downloads", "percentages"]
for metric in metrics:
model_data.append({"metric": metric, "name": model.__tablename__, "data": data_function[metric](records)})
# Build the plots
plots = []
for model in model_data:
plot = deepcopy(current_app.config["PLOT_BASE"])[model["metric"]]
# Set data
data = []
for category, values in model["data"].items():
base = deepcopy(current_app.config["DATA_BASE"][model["metric"]]["data"][0])
base["x"] = values["x"]
base["y"] = values["y"]
if model["metric"] == "percentages":
base["text"] = values["text"]
base["name"] = category.title()
data.append(base)
plot["data"] = data
# Add titles
if model["metric"] == "percentages":
plot["layout"][
"title"
] = f"Daily Download Proportions of {package} package - {model['name'].title().replace('_', ' ')}" # noqa
else:
plot["layout"][
"title"
] = f"Daily Download Quantity of {package} package - {model['name'].title().replace('_', ' ')}" # noqa
# Explicitly set range
plot["layout"]["xaxis"]["range"] = [str(records[0].date - datetime.timedelta(1)), str(datetime.date.today())]
# Add range buttons
plot["layout"]["xaxis"]["rangeselector"] = {"buttons": []}
drange = (datetime.date.today() - records[0].date).days
for k in [30, 60, 90, 120, 9999]:
if k <= drange:
plot["layout"]["xaxis"]["rangeselector"]["buttons"].append(
{"step": "day", "stepmode": "backward", "count": k + 1, "label": f"{k}d"}
)
else:
plot["layout"]["xaxis"]["rangeselector"]["buttons"].append(
{"step": "day", "stepmode": "backward", "count": drange + 1, "label": "all"}
)
break
plots.append(plot)
return render_template("package.html", package=package, plots=plots, metadata=metadata, recent=recent, user=g.user)
def get_download_data(records):
"""Organize the data for the absolute plots."""
data = defaultdict(lambda: {"x": [], "y": []})
date_categories = []
all_categories = []
prev_date = records[0].date
for record in records:
if record.category not in all_categories:
all_categories.append(record.category)
all_categories = sorted(all_categories)
for category in all_categories:
data[category] # set the dict value (keeps it ordered)
for record in records:
# Fill missing intermediate dates with zeros
if record.date != prev_date:
for category in all_categories:
if category not in date_categories:
data[category]["x"].append(str(prev_date))
data[category]["y"].append(0)
# Fill missing intermediate dates with zeros
days_between = (record.date - prev_date).days
date_list = [prev_date + datetime.timedelta(days=x) for x in range(1, days_between)]
for date in date_list:
for category in all_categories:
data[category]["x"].append(str(date))
data[category]["y"].append(0)
# Reset
date_categories = []
prev_date = record.date
# Track categories for this date
date_categories.append(record.category)
data[record.category]["x"].append(str(record.date))
data[record.category]["y"].append(record.downloads)
else:
# Fill in missing final date with zeros
for category in all_categories:
if category not in date_categories:
data[category]["x"].append(str(records[-1].date))
data[category]["y"].append(0)
return data
def get_proportion_data(records):
"""Organize the data for the fill plots."""
data = defaultdict(lambda: {"x": [], "y": [], "text": []})
date_categories = defaultdict(lambda: 0)
all_categories = []
prev_date = records[0].date
for record in records:
if record.category not in all_categories:
all_categories.append(record.category)
all_categories = sorted(all_categories)
for category in all_categories:
data[category] # set the dict value (keeps it ordered)
for record in records:
if record.date != prev_date:
total = sum(date_categories.values()) / 100
for category in all_categories:
data[category]["x"].append(str(prev_date))
value = date_categories[category] / total
data[category]["y"].append(value)
data[category]["text"].append("{0:.2f}%".format(value) + " = {:,}".format(date_categories[category]))
date_categories = defaultdict(lambda: 0)
prev_date = record.date
# Track categories for this date
date_categories[record.category] = record.downloads
else:
# Fill in missing final date with zeros
total = sum(date_categories.values()) / 100
for category in all_categories:
if category not in date_categories:
data[category]["x"].append(str(records[-1].date))
data[category]["y"].append(0)
data[category]["text"].append("{0:.2f}%".format(0) + " = {:,}".format(0))
else:
data[category]["x"].append(str(records[-1].date))
value = date_categories[category] / total
data[category]["y"].append(value)
data[category]["text"].append("{0:.2f}%".format(value) + " = {:,}".format(date_categories[category]))
return data
data_function = {"downloads": get_download_data, "percentages": get_proportion_data}
@blueprint.route("/top")
def top():
"""Render the top packages page."""
top_ = []
for category in ("day", "week", "month"):
downloads = (
RecentDownloadCount.query.filter_by(category=category)
.filter(RecentDownloadCount.package != "__all__")
.order_by(RecentDownloadCount.downloads.desc())
.limit(20)
.all()
)
top_.append(
{"category": category, "packages": [{"package": d.package, "downloads": d.downloads} for d in downloads]}
)
return render_template("top.html", top=top_, user=g.user)
@blueprint.route("/status")
def status():
"""Return OK."""
return "OK"