Great question! I’ve run into this exact issue before too—ABAQUS’s Python API doesn’t explicitly list a dedicated "set working directory" command in the reference docs, but there are two reliable workarounds that get the job done:

1. Use Python’s Standard os Module #

ABAQUS’s Python environment fully supports Python’s standard library, so you can use os.chdir() to change the global working directory for your script. This affects all subsequent file operations (like saving models, reading input files, or writing output) that use relative paths.

Example code:

import os

# Define your target working directory (use raw string to avoid escape character issues)
target_directory = r"C:\Projects\ABAQUS_Models\My_Project"

# Create the directory if it doesn't exist (optional but recommended)
os.makedirs(target_directory, exist_ok=True)

# Change to the target directory
os.chdir(target_directory)

# Verify the change (optional)
print(f"Current working directory: {os.getcwd()}")

After running this, any file operations in your script will default to this directory. For example, when you save a model with mdb.saveAs('MyModel.cae'), it will be saved directly to target_directory.

2. Set ABAQUS Session’s Default Directory #

If you specifically want to control where ABAQUS saves output files (like ODBs, INPs, or log files), you can configure the ABAQUS Session object to set a default output directory. This is separate from the Python interpreter’s working directory but ensures ABAQUS-generated files go to your desired location.

Example code:

from abaqus import session

# Set the default directory for ABAQUS output files
session.setValues(defaultDirectory=r"C:\Projects\ABAQUS_Outputs\My_Project_Results")

This will make ABAQUS save job outputs, visualization files, and other session-related files to the specified directory by default, even if your Python working directory is different.

Key Notes #

• Always use raw strings (prefix with r) for file paths to avoid issues with backslashes in Windows paths.
• If you need both the Python working directory and ABAQUS session directory to match, combine both methods above.
• The os.makedirs(..., exist_ok=True) line ensures your target directory is created if it doesn’t already exist (works in Python 3.2+; which is the version ABAQUS uses in recent releases).

内容的提问来源于stack exchange，提问作者서보일