Step 3. PyJEM¶

This document explains the procedure for installing PyJEM using setup.exe.
Simply follow the on-screen instructions and the installation will be complete. We provide the setup.exe here.

Prerequisites¶

Before starting the installation, confirm the following:

Item	Description
Installer	`setup.exe` released on the forum
License Key	Included in media VEM1342-07 or later, or VEM2066-00 or later
Python Environment	Either `vjem310` / `vjem312` (or any `python.exe`)

About License Key
Depending on your media version (VEM1342), the files setup.exe and LICENSE_KEY may differ. See the installation steps for details.

Steps¶

Step 0: Launch the Installer¶

Double-click setup.exe to launch it.

Step 1: License Agreement¶

First, the License Agreement screen will be displayed.

Scroll through and read the entire agreement
Check the “I Agree” checkbox
The “Next” button will become enabled, so click it

The “Next” button cannot be clicked without checking this box.

Step 2: PyJEM Package and License Key Selection¶

■ PyJEM Package Selection:

Option	Description
Use included	Use the package bundled with the installer (normally select this)
Use other	Use `.whl` / `.zip` files published on the forum

Note: PyJEM libraries are published on the Forum.

■ License Key Configuration:

Click the “…” button to open file selection dialog
Depending on your media version, refer to the table below to select the file

fig: File Selection by Media Version

Media Version	ISO Structure	FILE to Select for LICENSE
VEM1342-07 ～ 10	`VEM1342-**.iso` > PyJEM > `library` > `LICENSE_KEY`	Select `LICENSE_KEY` file directly
VEM1342-11 ～ 12	`VEM1342-**.iso` > PyJEM > `media` > `library` > `LICENSE_KEY`	Select `LICENSE_KEY` file directly
VEM1342-13 ～ VEM2066-01	`VEM1342-**.iso` > PyJEM > `setup.exe` (LICENSE_KEY embedded)	Select `setup.exe` (auto-extracted)
VEM2066-02 and later	`VEM2066-**.iso` > PyJEM > `setup.exe` + `LICENSE_KEY` (separate file)	Select `LICENSE_KEY` file directly

Note: If you have media VEM1342-13 ～ VEM2066-01, select setup.exe for License.

Note: For VEM2066-02 and later, the media includes a separate LICENSE_KEY file along with setup.exe. Select the LICENSE_KEY file directly.

■ Options:

Option	Description
Make document shortcut on Desktop	Create a shortcut to documentation on the desktop
Setup on remote PC	Use when setting up on a remote PC

Once configured, click “Next”

Step 3: Python Environment Selection¶

Check the Python environment where you want to install
- By default, vjem310 / vjem312 are displayed in the list
- You can also add any python.exe using the “Add” button
Select at least one and click “Next”

Warning: Clicking “Next” without selecting an environment will show an error.

Step 4: Confirm Installation Contents¶

Confirm the installation contents.
If everything looks correct, click “Install” to begin the installation.

Step 5: Installation Execution¶

The log will scroll as installation progresses. Wait until completion.

Warning: Do not close the window during installation.

Step 6: Verify Installation Results¶

Result	Meaning
✅ Success	Installation successful
❌ Failed	Installation failed (click “Log” button to check details)

Click “Close” to close the installer.

Verification after Installation¶

You can verify a successful installation by running the following in Python:

import PyJEM
print(PyJEM.__version__)

1.3.15.3769

If the version number is displayed, the installation is successful! 🎉

❓ Troubleshooting¶

Symptom	Solution
“Next” button cannot be clicked (License screen)	Check the “I Agree” checkbox
LICENSE_KEY not found error	Try selecting the `setup.exe` file itself
Environment not displayed in list	Manually add `python.exe` using the “Add” button
Installation Failed	Check error details with the “Log” button and retry with administrator privileges

Old Installer¶

Installer Types:

VEM1342-12～16
- Released: 2024/1/24 ～
- Support upgrade install
- The installation is performed via the UI.
VEM1342-11～12
- Released: 2022/4/26 ～
- Support upgrade install
- The installation is performed via the command line.
VEM1342-07～10
- Released: 2021/7/20 ～
- Support upgrade install
- The installation is performed via the bat file.
VEM1342-02～06
- Released: 2018/1/17 ～ 2021/6/9
- Unsupport upgrade install

Notes:

Some older installers do not support updates.
Please contact your JEOL sales representative for applicability and details.