On 6/9/25 20:15, Marc Shapiro via Dng wrote:
> A while back, I posted about issues with using yfinance and python's
> virtual environments.  I was having problems with getting the venv to
> work, even though it seemed fairly straightforward.  I ended up
> rewriting the python scrips to avoid using yfinance to get around the
> problem.
>
> I decided, however, that I really should get venvs working for the
> next time that I write something in python.  So I created a venv and
> installed yfinance in it.  As expected, it pulled in a slew of other
> packages.  I copied the old version of my program (that requires
> yfinance) into the directory containing the venv and tried to run it. 
> The results are as follows:
>
> ---------- First, it says that it can't find curl_cffi ----------
>
> ModuleNotFoundError: No module named 'curl_cffi'
>
> What am I doing wrong?  It seems like everything should be working,
> now, but it isn't.
>
> Marc

I don´t see anything wrong with what you did, I just did the same in my
system (daedalus) and a simple yfinance program runs.

Have you tried with uv?  https://docs.astral.sh/uv/

A program to get a ticker with uv and yfinance:

----snip----
#!/usr/bin/env -S uv run --script
# /// script
# requires-python = "~=3.13"
# dependencies = [
#     "yfinance",
# ]
# ///

import yfinance as yf
ticker = 'AAPL'
data = yf.download(ticker, start='2024-01-01', end='2025-01-01')
print(data.info())
print(data.head())

----snip----

I put that in a file, and made it executable, then ran it.

It returns this:

FutureWarning: YF.download() has changed argument auto_adjust default to
True
  data = yf.download(ticker, start='2024-01-01', end='2025-01-01')
[*********************100%***********************]  1 of 1 completed
<class 'pandas.core.frame.DataFrame'>
DatetimeIndex: 252 entries, 2024-01-02 to 2024-12-31
Data columns (total 5 columns):
 #   Column          Non-Null Count  Dtype
---  ------          --------------  -----
 0   (Close, AAPL)   252 non-null    float64
 1   (High, AAPL)    252 non-null    float64
 2   (Low, AAPL)     252 non-null    float64
 3   (Open, AAPL)    252 non-null    float64
 4   (Volume, AAPL)  252 non-null    int64
dtypes: float64(4), int64(1)
memory usage: 11.8 KB
None
Price            Close        High         Low        Open Volume
Ticker            AAPL        AAPL        AAPL        AAPL AAPL
Date
2024-01-02  184.290405  187.070052  182.553128  185.789422 82488700
2024-01-03  182.910507  184.528662  182.096461  182.880727 58414500
2024-01-04  180.587540  181.758954  179.565029  180.825785 71983600
2024-01-05  179.862823  181.431339  178.860172  180.666948 62303300
2024-01-08  184.210983  184.250701  180.180502  180.766209 59144500

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--
Hector Gonzalez
cacho@???