Zhensong Ren zhensongren

To list all python versions in default locations

ls /usr/bin/python*

sudo apt-get remove python3.5

sudo apt-get remove --auto-remove python3.5

sudo apt-get purge python3.5


	@app.post("/campaigns/import_csv")
	async def import_csv(
	file: UploadFile = File(..., description="CSV with headers; includes parameters + objectives"),
	meta_json: Optional[str] = Form(None, description='Tiny JSON, e.g. {"objectives":[{"name":"y","direction":"max"}],"batch_size":3}')
	):
	# 1) Load CSV
	try:
	text = (await file.read()).decode("utf-8")
	df = pd.read_csv(StringIO(text))

	# app/main.py
	from io import StringIO, BytesIO
	from typing import Dict, List, Tuple, Optional
	from uuid import uuid4
	import hashlib
	import pandas as pd
	from fastapi import FastAPI, UploadFile, File, Form, HTTPException
	from fastapi.responses import StreamingResponse, JSONResponse

	# ---- BayBE (verified API)

	# Avoid reading formulas/macros; target a single sheet
	df = pd.read_excel("source.xlsx", sheet_name="data", engine="openpyxl")
	df.to_csv("export.csv", index=False)

	import pandas as pd
	import pyarrow as pa
	import pyarrow.parquet as pq

	# Read CSV with explicit dtypes when possible
	df = pd.read_csv(

	# %%
	import pandas as pd
	import numpy as np
	from darts import TimeSeries
	from darts.models import NBEATSModel
	from darts.metrics import mape
	from darts.dataprocessing.transformers import Scaler

	# %%
	import numpy as np

	import numpy as np
	import matplotlib.pyplot as plt
	from statsmodels.regression.linear_model import OLS
	from statsmodels.tools.tools import add_constant

	def plot_partial_cross_correlation(x, y, max_lag=20, title=None):
	"""
	Plot partial cross-correlation (PCC) between time series x and y.

	Parameters:

	# %% [markdown]
	# A 4×4 grid of scatter plots
	# Each showing the relationship between lagged ts1 (predictor) and ts2 (target)

	# %%
	import pandas as pd
	import numpy as np
	import matplotlib.pyplot as plt
	import seaborn as sns
	from darts import TimeSeries

	https://github.com/run-llama/sec-insights/issues/9
	https://www.secinsights.ai/conversation/fa6614b9-ccac-4b01-a94b-779a404e6141

	Sure, here's the questionnaire in English:

	Do you encounter situations in your daily work that require handling a large amount of data?
	a. Yes, I frequently deal with large volumes of data.
	b. Sometimes, I handle some data.
	c. Rarely, I am not heavily involved in data processing.
	d. No, I don't work with data.

	How familiar are you with AI (Artificial Intelligence) and data science?
	a. Completely unfamiliar, I would like to start from the basics.